Home / 132,269.76-182,463.84-81,881.28

Finding the Fourth Proportional to 132,269.76, 182,463.84 and 81,881.28

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Solution

The fourth proportional to 132,269.76, 182,463.84 and 81,881.28 is: 112,953.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,269.76 : 182,463.84 = 81,881.28 : x
  2. Step 2: Convert to fraction form
    132,269.76/182,463.84 = 81,881.28/x
  3. Step 3: Cross multiply
    132,269.76x = 182,463.84 × 81,881.28
  4. Step 4: Simplify right side
    132,269.76x = 14,940,372,772.92
  5. Step 5: Solve for x
    x = 14,940,372,772.92/132,269.76
  6. Step 6: Final answer
    x = 112,953.81

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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.