Home / 156,089.38-215,404.87-84,470.89

Finding the Fourth Proportional to 156,089.38, 215,404.87 and 84,470.89

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Solution

The fourth proportional to 156,089.38, 215,404.87 and 84,470.89 is: 116,570.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,089.38 : 215,404.87 = 84,470.89 : x
  2. Step 2: Convert to fraction form
    156,089.38/215,404.87 = 84,470.89/x
  3. Step 3: Cross multiply
    156,089.38x = 215,404.87 × 84,470.89
  4. Step 4: Simplify right side
    156,089.38x = 18,195,441,079.23
  5. Step 5: Solve for x
    x = 18,195,441,079.23/156,089.38
  6. Step 6: Final answer
    x = 116,570.65

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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.