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Finding the Fourth Proportional to 148,495.80, 204,925.60 and 80,512.60

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Solution

The fourth proportional to 148,495.80, 204,925.60 and 80,512.60 is: 111,108.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,495.80 : 204,925.60 = 80,512.60 : x
  2. Step 2: Convert to fraction form
    148,495.80/204,925.60 = 80,512.60/x
  3. Step 3: Cross multiply
    148,495.80x = 204,925.60 × 80,512.60
  4. Step 4: Simplify right side
    148,495.80x = 16,499,092,862.56
  5. Step 5: Solve for x
    x = 16,499,092,862.56/148,495.80
  6. Step 6: Final answer
    x = 111,108.14

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1.5x scale

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.