Home / 156,003.90-215,266.86-88,016.91

Finding the Fourth Proportional to 156,003.90, 215,266.86 and 88,016.91

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Solution

The fourth proportional to 156,003.90, 215,266.86 and 88,016.91 is: 121,452.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,003.90 : 215,266.86 = 88,016.91 : x
  2. Step 2: Convert to fraction form
    156,003.90/215,266.86 = 88,016.91/x
  3. Step 3: Cross multiply
    156,003.90x = 215,266.86 × 88,016.91
  4. Step 4: Simplify right side
    156,003.90x = 18,947,123,842.60
  5. Step 5: Solve for x
    x = 18,947,123,842.60/156,003.90
  6. Step 6: Final answer
    x = 121,452.89

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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.