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Finding the Fourth Proportional to 147,454.60, 203,326.68 and 99,625

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Solution

The fourth proportional to 147,454.60, 203,326.68 and 99,625 is: 137,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,454.60 : 203,326.68 = 99,625 : x
  2. Step 2: Convert to fraction form
    147,454.60/203,326.68 = 99,625/x
  3. Step 3: Cross multiply
    147,454.60x = 203,326.68 × 99,625
  4. Step 4: Simplify right side
    147,454.60x = 20,256,420,495
  5. Step 5: Solve for x
    x = 20,256,420,495/147,454.60
  6. Step 6: Final answer
    x = 137,373.95

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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.