Home / 149,366.76-206,123.24-81,382.92

Finding the Fourth Proportional to 149,366.76, 206,123.24 and 81,382.92

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Solution

The fourth proportional to 149,366.76, 206,123.24 and 81,382.92 is: 112,306.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,366.76 : 206,123.24 = 81,382.92 : x
  2. Step 2: Convert to fraction form
    149,366.76/206,123.24 = 81,382.92/x
  3. Step 3: Cross multiply
    149,366.76x = 206,123.24 × 81,382.92
  4. Step 4: Simplify right side
    149,366.76x = 16,774,911,151.06
  5. Step 5: Solve for x
    x = 16,774,911,151.06/149,366.76
  6. Step 6: Final answer
    x = 112,306.86

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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.