Home / 149,557.50-206,382.06-89,126.76

Finding the Fourth Proportional to 149,557.50, 206,382.06 and 89,126.76

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Solution

The fourth proportional to 149,557.50, 206,382.06 and 89,126.76 is: 122,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,557.50 : 206,382.06 = 89,126.76 : x
  2. Step 2: Convert to fraction form
    149,557.50/206,382.06 = 89,126.76/x
  3. Step 3: Cross multiply
    149,557.50x = 206,382.06 × 89,126.76
  4. Step 4: Simplify right side
    149,557.50x = 18,394,164,329.93
  5. Step 5: Solve for x
    x = 18,394,164,329.93/149,557.50
  6. Step 6: Final answer
    x = 122,990.58

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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.