Home / 118,402.12-163,392.15-64,687.24

Finding the Fourth Proportional to 118,402.12, 163,392.15 and 64,687.24

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Solution

The fourth proportional to 118,402.12, 163,392.15 and 64,687.24 is: 89,266.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,402.12 : 163,392.15 = 64,687.24 : x
  2. Step 2: Convert to fraction form
    118,402.12/163,392.15 = 64,687.24/x
  3. Step 3: Cross multiply
    118,402.12x = 163,392.15 × 64,687.24
  4. Step 4: Simplify right side
    118,402.12x = 10,569,387,221.17
  5. Step 5: Solve for x
    x = 10,569,387,221.17/118,402.12
  6. Step 6: Final answer
    x = 89,266.87

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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.