Home / 156,747.80-216,311.28-85,127.24

Finding the Fourth Proportional to 156,747.80, 216,311.28 and 85,127.24

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Solution

The fourth proportional to 156,747.80, 216,311.28 and 85,127.24 is: 117,475.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,747.80 : 216,311.28 = 85,127.24 : x
  2. Step 2: Convert to fraction form
    156,747.80/216,311.28 = 85,127.24/x
  3. Step 3: Cross multiply
    156,747.80x = 216,311.28 × 85,127.24
  4. Step 4: Simplify right side
    156,747.80x = 18,413,982,247.27
  5. Step 5: Solve for x
    x = 18,413,982,247.27/156,747.80
  6. Step 6: Final answer
    x = 117,475.22

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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.