Home / 149,554.50-206,377.92-89,123.76

Finding the Fourth Proportional to 149,554.50, 206,377.92 and 89,123.76

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Solution

The fourth proportional to 149,554.50, 206,377.92 and 89,123.76 is: 122,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,554.50 : 206,377.92 = 89,123.76 : x
  2. Step 2: Convert to fraction form
    149,554.50/206,377.92 = 89,123.76/x
  3. Step 3: Cross multiply
    149,554.50x = 206,377.92 × 89,123.76
  4. Step 4: Simplify right side
    149,554.50x = 18,393,176,211.38
  5. Step 5: Solve for x
    x = 18,393,176,211.38/149,554.50
  6. Step 6: Final answer
    x = 122,986.44

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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.