Home / 156,158.39-215,498.66-84,538.42

Finding the Fourth Proportional to 156,158.39, 215,498.66 and 84,538.42

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Solution

The fourth proportional to 156,158.39, 215,498.66 and 84,538.42 is: 116,663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,158.39 : 215,498.66 = 84,538.42 : x
  2. Step 2: Convert to fraction form
    156,158.39/215,498.66 = 84,538.42/x
  3. Step 3: Cross multiply
    156,158.39x = 215,498.66 × 84,538.42
  4. Step 4: Simplify right side
    156,158.39x = 18,217,915,267.08
  5. Step 5: Solve for x
    x = 18,217,915,267.08/156,158.39
  6. Step 6: Final answer
    x = 116,663.06

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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.