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Finding the Fourth Proportional to 148,737.18, 205,256.17 and 80,752.82

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Solution

The fourth proportional to 148,737.18, 205,256.17 and 80,752.82 is: 111,438.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,737.18 : 205,256.17 = 80,752.82 : x
  2. Step 2: Convert to fraction form
    148,737.18/205,256.17 = 80,752.82/x
  3. Step 3: Cross multiply
    148,737.18x = 205,256.17 × 80,752.82
  4. Step 4: Simplify right side
    148,737.18x = 16,575,014,549.90
  5. Step 5: Solve for x
    x = 16,575,014,549.90/148,737.18
  6. Step 6: Final answer
    x = 111,438.27

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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.