Home / 121,711.13-182,407.64-88,090.35

Finding the Fourth Proportional to 121,711.13, 182,407.64 and 88,090.35

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Solution

The fourth proportional to 121,711.13, 182,407.64 and 88,090.35 is: 132,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,711.13 : 182,407.64 = 88,090.35 : x
  2. Step 2: Convert to fraction form
    121,711.13/182,407.64 = 88,090.35/x
  3. Step 3: Cross multiply
    121,711.13x = 182,407.64 × 88,090.35
  4. Step 4: Simplify right side
    121,711.13x = 16,068,351,497.78
  5. Step 5: Solve for x
    x = 16,068,351,497.78/121,711.13
  6. Step 6: Final answer
    x = 132,020.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.