Home / 141,589.16-212,515.14-71,517.68

Finding the Fourth Proportional to 141,589.16, 212,515.14 and 71,517.68

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Solution

The fourth proportional to 141,589.16, 212,515.14 and 71,517.68 is: 107,342.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,589.16 : 212,515.14 = 71,517.68 : x
  2. Step 2: Convert to fraction form
    141,589.16/212,515.14 = 71,517.68/x
  3. Step 3: Cross multiply
    141,589.16x = 212,515.14 × 71,517.68
  4. Step 4: Simplify right side
    141,589.16x = 15,198,589,777.68
  5. Step 5: Solve for x
    x = 15,198,589,777.68/141,589.16
  6. Step 6: Final answer
    x = 107,342.89

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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.