Home / 156,177.28-215,524.79-84,557.35

Finding the Fourth Proportional to 156,177.28, 215,524.79 and 84,557.35

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Solution

The fourth proportional to 156,177.28, 215,524.79 and 84,557.35 is: 116,689.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,177.28 : 215,524.79 = 84,557.35 : x
  2. Step 2: Convert to fraction form
    156,177.28/215,524.79 = 84,557.35/x
  3. Step 3: Cross multiply
    156,177.28x = 215,524.79 × 84,557.35
  4. Step 4: Simplify right side
    156,177.28x = 18,224,205,101.71
  5. Step 5: Solve for x
    x = 18,224,205,101.71/156,177.28
  6. Step 6: Final answer
    x = 116,689.22

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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.