Home / 87,635.40-131,462.70-84,870.60

Finding the Fourth Proportional to 87,635.40, 131,462.70 and 84,870.60

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Solution

The fourth proportional to 87,635.40, 131,462.70 and 84,870.60 is: 127,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,635.40 : 131,462.70 = 84,870.60 : x
  2. Step 2: Convert to fraction form
    87,635.40/131,462.70 = 84,870.60/x
  3. Step 3: Cross multiply
    87,635.40x = 131,462.70 × 84,870.60
  4. Step 4: Simplify right side
    87,635.40x = 11,157,318,226.62
  5. Step 5: Solve for x
    x = 11,157,318,226.62/87,635.40
  6. Step 6: Final answer
    x = 127,315.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.