Home / 156,275.92-215,607.72-88,282.96

Finding the Fourth Proportional to 156,275.92, 215,607.72 and 88,282.96

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Solution

The fourth proportional to 156,275.92, 215,607.72 and 88,282.96 is: 121,800.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,275.92 : 215,607.72 = 88,282.96 : x
  2. Step 2: Convert to fraction form
    156,275.92/215,607.72 = 88,282.96/x
  3. Step 3: Cross multiply
    156,275.92x = 215,607.72 × 88,282.96
  4. Step 4: Simplify right side
    156,275.92x = 19,034,487,720.45
  5. Step 5: Solve for x
    x = 19,034,487,720.45/156,275.92
  6. Step 6: Final answer
    x = 121,800.52

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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.