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Finding the Fourth Proportional to 134,612.75, 185,766.84 and 74,185.56

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Solution

The fourth proportional to 134,612.75, 185,766.84 and 74,185.56 is: 102,376.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,612.75 : 185,766.84 = 74,185.56 : x
  2. Step 2: Convert to fraction form
    134,612.75/185,766.84 = 74,185.56/x
  3. Step 3: Cross multiply
    134,612.75x = 185,766.84 × 74,185.56
  4. Step 4: Simplify right side
    134,612.75x = 13,781,217,054.83
  5. Step 5: Solve for x
    x = 13,781,217,054.83/134,612.75
  6. Step 6: Final answer
    x = 102,376.76

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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.