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Finding the Fourth Proportional to 134,616.90, 185,772.59 and 74,189.76

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Solution

The fourth proportional to 134,616.90, 185,772.59 and 74,189.76 is: 102,382.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,616.90 : 185,772.59 = 74,189.76 : x
  2. Step 2: Convert to fraction form
    134,616.90/185,772.59 = 74,189.76/x
  3. Step 3: Cross multiply
    134,616.90x = 185,772.59 × 74,189.76
  4. Step 4: Simplify right side
    134,616.90x = 13,782,422,566.87
  5. Step 5: Solve for x
    x = 13,782,422,566.87/134,616.90
  6. Step 6: Final answer
    x = 102,382.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.