Home / 132,411.20-182,719.85-71,981.35

Finding the Fourth Proportional to 132,411.20, 182,719.85 and 71,981.35

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Solution

The fourth proportional to 132,411.20, 182,719.85 and 71,981.35 is: 99,330.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,411.20 : 182,719.85 = 71,981.35 : x
  2. Step 2: Convert to fraction form
    132,411.20/182,719.85 = 71,981.35/x
  3. Step 3: Cross multiply
    132,411.20x = 182,719.85 × 71,981.35
  4. Step 4: Simplify right side
    132,411.20x = 13,152,421,197.95
  5. Step 5: Solve for x
    x = 13,152,421,197.95/132,411.20
  6. Step 6: Final answer
    x = 99,330.13

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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.