Home / 156,372.77-215,790.94-88,380.70

Finding the Fourth Proportional to 156,372.77, 215,790.94 and 88,380.70

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Solution

The fourth proportional to 156,372.77, 215,790.94 and 88,380.70 is: 121,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,372.77 : 215,790.94 = 88,380.70 : x
  2. Step 2: Convert to fraction form
    156,372.77/215,790.94 = 88,380.70/x
  3. Step 3: Cross multiply
    156,372.77x = 215,790.94 × 88,380.70
  4. Step 4: Simplify right side
    156,372.77x = 19,071,754,330.86
  5. Step 5: Solve for x
    x = 19,071,754,330.86/156,372.77
  6. Step 6: Final answer
    x = 121,963.40

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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.