Home / 156,982.70-235,472.16-38,655.20

Finding the Fourth Proportional to 156,982.70, 235,472.16 and 38,655.20

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Solution

The fourth proportional to 156,982.70, 235,472.16 and 38,655.20 is: 57,982.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,982.70 : 235,472.16 = 38,655.20 : x
  2. Step 2: Convert to fraction form
    156,982.70/235,472.16 = 38,655.20/x
  3. Step 3: Cross multiply
    156,982.70x = 235,472.16 × 38,655.20
  4. Step 4: Simplify right side
    156,982.70x = 9,102,223,439.23
  5. Step 5: Solve for x
    x = 9,102,223,439.23/156,982.70
  6. Step 6: Final answer
    x = 57,982.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.