Home / 132,404.49-182,724.87-81,420.06

Finding the Fourth Proportional to 132,404.49, 182,724.87 and 81,420.06

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Solution

The fourth proportional to 132,404.49, 182,724.87 and 81,420.06 is: 112,363.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,404.49 : 182,724.87 = 81,420.06 : x
  2. Step 2: Convert to fraction form
    132,404.49/182,724.87 = 81,420.06/x
  3. Step 3: Cross multiply
    132,404.49x = 182,724.87 × 81,420.06
  4. Step 4: Simplify right side
    132,404.49x = 14,877,468,965.27
  5. Step 5: Solve for x
    x = 14,877,468,965.27/132,404.49
  6. Step 6: Final answer
    x = 112,363.78

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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.