Home / 156,000.83-215,281.17-84,380.82

Finding the Fourth Proportional to 156,000.83, 215,281.17 and 84,380.82

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Solution

The fourth proportional to 156,000.83, 215,281.17 and 84,380.82 is: 116,445.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,000.83 : 215,281.17 = 84,380.82 : x
  2. Step 2: Convert to fraction form
    156,000.83/215,281.17 = 84,380.82/x
  3. Step 3: Cross multiply
    156,000.83x = 215,281.17 × 84,380.82
  4. Step 4: Simplify right side
    156,000.83x = 18,165,601,655.16
  5. Step 5: Solve for x
    x = 18,165,601,655.16/156,000.83
  6. Step 6: Final answer
    x = 116,445.55

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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.