Home / 148,476.20-204,899.94-81,407.72

Finding the Fourth Proportional to 148,476.20, 204,899.94 and 81,407.72

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Solution

The fourth proportional to 148,476.20, 204,899.94 and 81,407.72 is: 112,344.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,476.20 : 204,899.94 = 81,407.72 : x
  2. Step 2: Convert to fraction form
    148,476.20/204,899.94 = 81,407.72/x
  3. Step 3: Cross multiply
    148,476.20x = 204,899.94 × 81,407.72
  4. Step 4: Simplify right side
    148,476.20x = 16,680,436,943.54
  5. Step 5: Solve for x
    x = 16,680,436,943.54/148,476.20
  6. Step 6: Final answer
    x = 112,344.18

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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.