Home / 149,535.67-206,391.24-85,908.55

Finding the Fourth Proportional to 149,535.67, 206,391.24 and 85,908.55

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Solution

The fourth proportional to 149,535.67, 206,391.24 and 85,908.55 is: 118,572.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,535.67 : 206,391.24 = 85,908.55 : x
  2. Step 2: Convert to fraction form
    149,535.67/206,391.24 = 85,908.55/x
  3. Step 3: Cross multiply
    149,535.67x = 206,391.24 × 85,908.55
  4. Step 4: Simplify right side
    149,535.67x = 17,730,772,161.10
  5. Step 5: Solve for x
    x = 17,730,772,161.10/149,535.67
  6. Step 6: Final answer
    x = 118,572.19

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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.