Home / 129,335.08-178,304.34-88,491.64

Finding the Fourth Proportional to 129,335.08, 178,304.34 and 88,491.64

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Solution

The fourth proportional to 129,335.08, 178,304.34 and 88,491.64 is: 121,996.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,335.08 : 178,304.34 = 88,491.64 : x
  2. Step 2: Convert to fraction form
    129,335.08/178,304.34 = 88,491.64/x
  3. Step 3: Cross multiply
    129,335.08x = 178,304.34 × 88,491.64
  4. Step 4: Simplify right side
    129,335.08x = 15,778,443,465.72
  5. Step 5: Solve for x
    x = 15,778,443,465.72/129,335.08
  6. Step 6: Final answer
    x = 121,996.63

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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.