Home / 119,860.28-165,315.65-74,540.17

Finding the Fourth Proportional to 119,860.28, 165,315.65 and 74,540.17

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Solution

The fourth proportional to 119,860.28, 165,315.65 and 74,540.17 is: 102,808.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,860.28 : 165,315.65 = 74,540.17 : x
  2. Step 2: Convert to fraction form
    119,860.28/165,315.65 = 74,540.17/x
  3. Step 3: Cross multiply
    119,860.28x = 165,315.65 × 74,540.17
  4. Step 4: Simplify right side
    119,860.28x = 12,322,656,654.66
  5. Step 5: Solve for x
    x = 12,322,656,654.66/119,860.28
  6. Step 6: Final answer
    x = 102,808.51

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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.