Home / 156,538.04-216,042-102,867.44

Finding the Fourth Proportional to 156,538.04, 216,042 and 102,867.44

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Solution

The fourth proportional to 156,538.04, 216,042 and 102,867.44 is: 141,969.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,538.04 : 216,042 = 102,867.44 : x
  2. Step 2: Convert to fraction form
    156,538.04/216,042 = 102,867.44/x
  3. Step 3: Cross multiply
    156,538.04x = 216,042 × 102,867.44
  4. Step 4: Simplify right side
    156,538.04x = 22,223,687,472.48
  5. Step 5: Solve for x
    x = 22,223,687,472.48/156,538.04
  6. Step 6: Final answer
    x = 141,969.88

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1.5x scale

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.