Home / 132,153.17-182,288.42-78,400.13

Finding the Fourth Proportional to 132,153.17, 182,288.42 and 78,400.13

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Solution

The fourth proportional to 132,153.17, 182,288.42 and 78,400.13 is: 108,142.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,153.17 : 182,288.42 = 78,400.13 : x
  2. Step 2: Convert to fraction form
    132,153.17/182,288.42 = 78,400.13/x
  3. Step 3: Cross multiply
    132,153.17x = 182,288.42 × 78,400.13
  4. Step 4: Simplify right side
    132,153.17x = 14,291,434,816.05
  5. Step 5: Solve for x
    x = 14,291,434,816.05/132,153.17
  6. Step 6: Final answer
    x = 108,142.96

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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.