Home / 149,478.72-206,244.24-89,010.56

Finding the Fourth Proportional to 149,478.72, 206,244.24 and 89,010.56

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Solution

The fourth proportional to 149,478.72, 206,244.24 and 89,010.56 is: 122,812.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,478.72 : 206,244.24 = 89,010.56 : x
  2. Step 2: Convert to fraction form
    149,478.72/206,244.24 = 89,010.56/x
  3. Step 3: Cross multiply
    149,478.72x = 206,244.24 × 89,010.56
  4. Step 4: Simplify right side
    149,478.72x = 18,357,915,299.17
  5. Step 5: Solve for x
    x = 18,357,915,299.17/149,478.72
  6. Step 6: Final answer
    x = 122,812.90

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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.