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Finding the Fourth Proportional to 134,382.79, 185,468.66 and 80,697.41

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Solution

The fourth proportional to 134,382.79, 185,468.66 and 80,697.41 is: 111,374.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,382.79 : 185,468.66 = 80,697.41 : x
  2. Step 2: Convert to fraction form
    134,382.79/185,468.66 = 80,697.41/x
  3. Step 3: Cross multiply
    134,382.79x = 185,468.66 × 80,697.41
  4. Step 4: Simplify right side
    134,382.79x = 14,966,839,772.57
  5. Step 5: Solve for x
    x = 14,966,839,772.57/134,382.79
  6. Step 6: Final answer
    x = 111,374.68

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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.