Home / 156,519.10-215,996.36-88,534.62

Finding the Fourth Proportional to 156,519.10, 215,996.36 and 88,534.62

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Solution

The fourth proportional to 156,519.10, 215,996.36 and 88,534.62 is: 122,177.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,519.10 : 215,996.36 = 88,534.62 : x
  2. Step 2: Convert to fraction form
    156,519.10/215,996.36 = 88,534.62/x
  3. Step 3: Cross multiply
    156,519.10x = 215,996.36 × 88,534.62
  4. Step 4: Simplify right side
    156,519.10x = 19,123,155,211.31
  5. Step 5: Solve for x
    x = 19,123,155,211.31/156,519.10
  6. Step 6: Final answer
    x = 122,177.77

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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.