Home / 156,158.64-215,499.61-84,538.66

Finding the Fourth Proportional to 156,158.64, 215,499.61 and 84,538.66

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Solution

The fourth proportional to 156,158.64, 215,499.61 and 84,538.66 is: 116,663.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,158.64 : 215,499.61 = 84,538.66 : x
  2. Step 2: Convert to fraction form
    156,158.64/215,499.61 = 84,538.66/x
  3. Step 3: Cross multiply
    156,158.64x = 215,499.61 × 84,538.66
  4. Step 4: Simplify right side
    156,158.64x = 18,218,048,529.30
  5. Step 5: Solve for x
    x = 18,218,048,529.30/156,158.64
  6. Step 6: Final answer
    x = 116,663.72

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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.