Home / 149,659.96-206,535.57-85,127.53

Finding the Fourth Proportional to 149,659.96, 206,535.57 and 85,127.53

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Solution

The fourth proportional to 149,659.96, 206,535.57 and 85,127.53 is: 117,478.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,659.96 : 206,535.57 = 85,127.53 : x
  2. Step 2: Convert to fraction form
    149,659.96/206,535.57 = 85,127.53/x
  3. Step 3: Cross multiply
    149,659.96x = 206,535.57 × 85,127.53
  4. Step 4: Simplify right side
    149,659.96x = 17,581,863,542.65
  5. Step 5: Solve for x
    x = 17,581,863,542.65/149,659.96
  6. Step 6: Final answer
    x = 117,478.74

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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.