Home / 105,343.28-158,077.28-38,830.12

Finding the Fourth Proportional to 105,343.28, 158,077.28 and 38,830.12

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Solution

The fourth proportional to 105,343.28, 158,077.28 and 38,830.12 is: 58,268.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,343.28 : 158,077.28 = 38,830.12 : x
  2. Step 2: Convert to fraction form
    105,343.28/158,077.28 = 38,830.12/x
  3. Step 3: Cross multiply
    105,343.28x = 158,077.28 × 38,830.12
  4. Step 4: Simplify right side
    105,343.28x = 6,138,159,751.67
  5. Step 5: Solve for x
    x = 6,138,159,751.67/105,343.28
  6. Step 6: Final answer
    x = 58,268.17

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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.