Home / 134,819.40-186,049.40-74,391.24

Finding the Fourth Proportional to 134,819.40, 186,049.40 and 74,391.24

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Solution

The fourth proportional to 134,819.40, 186,049.40 and 74,391.24 is: 102,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,819.40 : 186,049.40 = 74,391.24 : x
  2. Step 2: Convert to fraction form
    134,819.40/186,049.40 = 74,391.24/x
  3. Step 3: Cross multiply
    134,819.40x = 186,049.40 × 74,391.24
  4. Step 4: Simplify right side
    134,819.40x = 13,840,445,195.30
  5. Step 5: Solve for x
    x = 13,840,445,195.30/134,819.40
  6. Step 6: Final answer
    x = 102,659.15

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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.