Home / 134,780.57-185,997.18-74,351.36

Finding the Fourth Proportional to 134,780.57, 185,997.18 and 74,351.36

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Solution

The fourth proportional to 134,780.57, 185,997.18 and 74,351.36 is: 102,604.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,780.57 : 185,997.18 = 74,351.36 : x
  2. Step 2: Convert to fraction form
    134,780.57/185,997.18 = 74,351.36/x
  3. Step 3: Cross multiply
    134,780.57x = 185,997.18 × 74,351.36
  4. Step 4: Simplify right side
    134,780.57x = 13,829,142,359.18
  5. Step 5: Solve for x
    x = 13,829,142,359.18/134,780.57
  6. Step 6: Final answer
    x = 102,604.87

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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.