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Finding the Fourth Proportional to 134,687.41, 185,865.51 and 74,256.69

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Solution

The fourth proportional to 134,687.41, 185,865.51 and 74,256.69 is: 102,472.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,687.41 : 185,865.51 = 74,256.69 : x
  2. Step 2: Convert to fraction form
    134,687.41/185,865.51 = 74,256.69/x
  3. Step 3: Cross multiply
    134,687.41x = 185,865.51 × 74,256.69
  4. Step 4: Simplify right side
    134,687.41x = 13,801,757,557.76
  5. Step 5: Solve for x
    x = 13,801,757,557.76/134,687.41
  6. Step 6: Final answer
    x = 102,472.51

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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.