Home / 105,370.05-158,055.08-38,785.62

Finding the Fourth Proportional to 105,370.05, 158,055.08 and 38,785.62

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Solution

The fourth proportional to 105,370.05, 158,055.08 and 38,785.62 is: 58,178.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,370.05 : 158,055.08 = 38,785.62 : x
  2. Step 2: Convert to fraction form
    105,370.05/158,055.08 = 38,785.62/x
  3. Step 3: Cross multiply
    105,370.05x = 158,055.08 × 38,785.62
  4. Step 4: Simplify right side
    105,370.05x = 6,130,264,271.95
  5. Step 5: Solve for x
    x = 6,130,264,271.95/105,370.05
  6. Step 6: Final answer
    x = 58,178.43

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.