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Finding the Fourth Proportional to 148,543.99, 204,990.80 and 80,560.94

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Solution

The fourth proportional to 148,543.99, 204,990.80 and 80,560.94 is: 111,174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,543.99 : 204,990.80 = 80,560.94 : x
  2. Step 2: Convert to fraction form
    148,543.99/204,990.80 = 80,560.94/x
  3. Step 3: Cross multiply
    148,543.99x = 204,990.80 × 80,560.94
  4. Step 4: Simplify right side
    148,543.99x = 16,514,251,539.35
  5. Step 5: Solve for x
    x = 16,514,251,539.35/148,543.99
  6. Step 6: Final answer
    x = 111,174.15

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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.