Home / 119,553.12-165,095.28-74,918.88

Finding the Fourth Proportional to 119,553.12, 165,095.28 and 74,918.88

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Solution

The fourth proportional to 119,553.12, 165,095.28 and 74,918.88 is: 103,458.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,553.12 : 165,095.28 = 74,918.88 : x
  2. Step 2: Convert to fraction form
    119,553.12/165,095.28 = 74,918.88/x
  3. Step 3: Cross multiply
    119,553.12x = 165,095.28 × 74,918.88
  4. Step 4: Simplify right side
    119,553.12x = 12,368,753,470.89
  5. Step 5: Solve for x
    x = 12,368,753,470.89/119,553.12
  6. Step 6: Final answer
    x = 103,458.22

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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.