Home / 148,737.15-205,256.10-80,752.76

Finding the Fourth Proportional to 148,737.15, 205,256.10 and 80,752.76

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Solution

The fourth proportional to 148,737.15, 205,256.10 and 80,752.76 is: 111,438.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,737.15 : 205,256.10 = 80,752.76 : x
  2. Step 2: Convert to fraction form
    148,737.15/205,256.10 = 80,752.76/x
  3. Step 3: Cross multiply
    148,737.15x = 205,256.10 × 80,752.76
  4. Step 4: Simplify right side
    148,737.15x = 16,574,997,555.54
  5. Step 5: Solve for x
    x = 16,574,997,555.54/148,737.15
  6. Step 6: Final answer
    x = 111,438.18

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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.