Home / 134,736.85-185,945.38-74,307.61

Finding the Fourth Proportional to 134,736.85, 185,945.38 and 74,307.61

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Solution

The fourth proportional to 134,736.85, 185,945.38 and 74,307.61 is: 102,549.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,736.85 : 185,945.38 = 74,307.61 : x
  2. Step 2: Convert to fraction form
    134,736.85/185,945.38 = 74,307.61/x
  3. Step 3: Cross multiply
    134,736.85x = 185,945.38 × 74,307.61
  4. Step 4: Simplify right side
    134,736.85x = 13,817,156,778.34
  5. Step 5: Solve for x
    x = 13,817,156,778.34/134,736.85
  6. Step 6: Final answer
    x = 102,549.20

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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.