Home / 105,815.16-158,785.11-39,302.10

Finding the Fourth Proportional to 105,815.16, 158,785.11 and 39,302.10

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Solution

The fourth proportional to 105,815.16, 158,785.11 and 39,302.10 is: 58,976.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,815.16 : 158,785.11 = 39,302.10 : x
  2. Step 2: Convert to fraction form
    105,815.16/158,785.11 = 39,302.10/x
  3. Step 3: Cross multiply
    105,815.16x = 158,785.11 × 39,302.10
  4. Step 4: Simplify right side
    105,815.16x = 6,240,588,271.73
  5. Step 5: Solve for x
    x = 6,240,588,271.73/105,815.16
  6. Step 6: Final answer
    x = 58,976.32

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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.