Home / 126,909.65-190,230.51-42,589.87

Finding the Fourth Proportional to 126,909.65, 190,230.51 and 42,589.87

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Solution

The fourth proportional to 126,909.65, 190,230.51 and 42,589.87 is: 63,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,909.65 : 190,230.51 = 42,589.87 : x
  2. Step 2: Convert to fraction form
    126,909.65/190,230.51 = 42,589.87/x
  3. Step 3: Cross multiply
    126,909.65x = 190,230.51 × 42,589.87
  4. Step 4: Simplify right side
    126,909.65x = 8,101,892,690.93
  5. Step 5: Solve for x
    x = 8,101,892,690.93/126,909.65
  6. Step 6: Final answer
    x = 63,839.85

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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.