Home / 149,439.12-206,120.46-88,962.90

Finding the Fourth Proportional to 149,439.12, 206,120.46 and 88,962.90

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Solution

The fourth proportional to 149,439.12, 206,120.46 and 88,962.90 is: 122,705.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,439.12 : 206,120.46 = 88,962.90 : x
  2. Step 2: Convert to fraction form
    149,439.12/206,120.46 = 88,962.90/x
  3. Step 3: Cross multiply
    149,439.12x = 206,120.46 × 88,962.90
  4. Step 4: Simplify right side
    149,439.12x = 18,337,073,870.93
  5. Step 5: Solve for x
    x = 18,337,073,870.93/149,439.12
  6. Step 6: Final answer
    x = 122,705.98

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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.