Home / 148,660.56-205,151.71-80,677.55

Finding the Fourth Proportional to 148,660.56, 205,151.71 and 80,677.55

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Solution

The fourth proportional to 148,660.56, 205,151.71 and 80,677.55 is: 111,335.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,660.56 : 205,151.71 = 80,677.55 : x
  2. Step 2: Convert to fraction form
    148,660.56/205,151.71 = 80,677.55/x
  3. Step 3: Cross multiply
    148,660.56x = 205,151.71 × 80,677.55
  4. Step 4: Simplify right side
    148,660.56x = 16,551,136,113.66
  5. Step 5: Solve for x
    x = 16,551,136,113.66/148,660.56
  6. Step 6: Final answer
    x = 111,335.09

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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.