Home / 125,116.20-187,674.30-71,972.10

Finding the Fourth Proportional to 125,116.20, 187,674.30 and 71,972.10

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Solution

The fourth proportional to 125,116.20, 187,674.30 and 71,972.10 is: 107,958.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,116.20 : 187,674.30 = 71,972.10 : x
  2. Step 2: Convert to fraction form
    125,116.20/187,674.30 = 71,972.10/x
  3. Step 3: Cross multiply
    125,116.20x = 187,674.30 × 71,972.10
  4. Step 4: Simplify right side
    125,116.20x = 13,507,313,487.03
  5. Step 5: Solve for x
    x = 13,507,313,487.03/125,116.20
  6. Step 6: Final answer
    x = 107,958.15

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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.