Home / 134,589.60-185,731.20-74,165.82

Finding the Fourth Proportional to 134,589.60, 185,731.20 and 74,165.82

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Solution

The fourth proportional to 134,589.60, 185,731.20 and 74,165.82 is: 102,347.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,589.60 : 185,731.20 = 74,165.82 : x
  2. Step 2: Convert to fraction form
    134,589.60/185,731.20 = 74,165.82/x
  3. Step 3: Cross multiply
    134,589.60x = 185,731.20 × 74,165.82
  4. Step 4: Simplify right side
    134,589.60x = 13,774,906,747.58
  5. Step 5: Solve for x
    x = 13,774,906,747.58/134,589.60
  6. Step 6: Final answer
    x = 102,347.48

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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.