Home / 156,432.19-215,863.14-88,439.73

Finding the Fourth Proportional to 156,432.19, 215,863.14 and 88,439.73

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Solution

The fourth proportional to 156,432.19, 215,863.14 and 88,439.73 is: 122,039.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,432.19 : 215,863.14 = 88,439.73 : x
  2. Step 2: Convert to fraction form
    156,432.19/215,863.14 = 88,439.73/x
  3. Step 3: Cross multiply
    156,432.19x = 215,863.14 × 88,439.73
  4. Step 4: Simplify right side
    156,432.19x = 19,090,876,594.50
  5. Step 5: Solve for x
    x = 19,090,876,594.50/156,432.19
  6. Step 6: Final answer
    x = 122,039.31

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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.