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Finding the Fourth Proportional to 134,517.84, 185,627.40 and 74,898

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Solution

The fourth proportional to 134,517.84, 185,627.40 and 74,898 is: 103,355.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,517.84 : 185,627.40 = 74,898 : x
  2. Step 2: Convert to fraction form
    134,517.84/185,627.40 = 74,898/x
  3. Step 3: Cross multiply
    134,517.84x = 185,627.40 × 74,898
  4. Step 4: Simplify right side
    134,517.84x = 13,903,121,005.20
  5. Step 5: Solve for x
    x = 13,903,121,005.20/134,517.84
  6. Step 6: Final answer
    x = 103,355.22

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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.