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Finding the Fourth Proportional to 134,725.43, 185,922.39 and 74,298.21

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Solution

The fourth proportional to 134,725.43, 185,922.39 and 74,298.21 is: 102,532.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,725.43 : 185,922.39 = 74,298.21 : x
  2. Step 2: Convert to fraction form
    134,725.43/185,922.39 = 74,298.21/x
  3. Step 3: Cross multiply
    134,725.43x = 185,922.39 × 74,298.21
  4. Step 4: Simplify right side
    134,725.43x = 13,813,700,775.92
  5. Step 5: Solve for x
    x = 13,813,700,775.92/134,725.43
  6. Step 6: Final answer
    x = 102,532.25

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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.