Home / 119,735.28-165,235.14-71,989.29

Finding the Fourth Proportional to 119,735.28, 165,235.14 and 71,989.29

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Solution

The fourth proportional to 119,735.28, 165,235.14 and 71,989.29 is: 99,345.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,735.28 : 165,235.14 = 71,989.29 : x
  2. Step 2: Convert to fraction form
    119,735.28/165,235.14 = 71,989.29/x
  3. Step 3: Cross multiply
    119,735.28x = 165,235.14 × 71,989.29
  4. Step 4: Simplify right side
    119,735.28x = 11,895,160,411.65
  5. Step 5: Solve for x
    x = 11,895,160,411.65/119,735.28
  6. Step 6: Final answer
    x = 99,345.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.