Home / 148,830.49-205,380.18-88,399.53

Finding the Fourth Proportional to 148,830.49, 205,380.18 and 88,399.53

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Solution

The fourth proportional to 148,830.49, 205,380.18 and 88,399.53 is: 121,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,830.49 : 205,380.18 = 88,399.53 : x
  2. Step 2: Convert to fraction form
    148,830.49/205,380.18 = 88,399.53/x
  3. Step 3: Cross multiply
    148,830.49x = 205,380.18 × 88,399.53
  4. Step 4: Simplify right side
    148,830.49x = 18,155,511,383.32
  5. Step 5: Solve for x
    x = 18,155,511,383.32/148,830.49
  6. Step 6: Final answer
    x = 121,987.85

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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.