Home / 129,335.20-193,804.64-87,058.88

Finding the Fourth Proportional to 129,335.20, 193,804.64 and 87,058.88

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Solution

The fourth proportional to 129,335.20, 193,804.64 and 87,058.88 is: 130,454.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,335.20 : 193,804.64 = 87,058.88 : x
  2. Step 2: Convert to fraction form
    129,335.20/193,804.64 = 87,058.88/x
  3. Step 3: Cross multiply
    129,335.20x = 193,804.64 × 87,058.88
  4. Step 4: Simplify right side
    129,335.20x = 16,872,414,897.20
  5. Step 5: Solve for x
    x = 16,872,414,897.20/129,335.20
  6. Step 6: Final answer
    x = 130,454.93

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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.