Home / 156,343.78-215,754.71-84,723.85

Finding the Fourth Proportional to 156,343.78, 215,754.71 and 84,723.85

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Solution

The fourth proportional to 156,343.78, 215,754.71 and 84,723.85 is: 116,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,343.78 : 215,754.71 = 84,723.85 : x
  2. Step 2: Convert to fraction form
    156,343.78/215,754.71 = 84,723.85/x
  3. Step 3: Cross multiply
    156,343.78x = 215,754.71 × 84,723.85
  4. Step 4: Simplify right side
    156,343.78x = 18,279,569,686.83
  5. Step 5: Solve for x
    x = 18,279,569,686.83/156,343.78
  6. Step 6: Final answer
    x = 116,919.07

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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.