Home / 156,154.86-215,493.66-84,534.83

Finding the Fourth Proportional to 156,154.86, 215,493.66 and 84,534.83

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Solution

The fourth proportional to 156,154.86, 215,493.66 and 84,534.83 is: 116,658.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,154.86 : 215,493.66 = 84,534.83 : x
  2. Step 2: Convert to fraction form
    156,154.86/215,493.66 = 84,534.83/x
  3. Step 3: Cross multiply
    156,154.86x = 215,493.66 × 84,534.83
  4. Step 4: Simplify right side
    156,154.86x = 18,216,719,914.18
  5. Step 5: Solve for x
    x = 18,216,719,914.18/156,154.86
  6. Step 6: Final answer
    x = 116,658.04

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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.