Home / 199,726.20-299,334.15-81,263.70

Finding the Fourth Proportional to 199,726.20, 299,334.15 and 81,263.70

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Solution

The fourth proportional to 199,726.20, 299,334.15 and 81,263.70 is: 121,791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,726.20 : 299,334.15 = 81,263.70 : x
  2. Step 2: Convert to fraction form
    199,726.20/299,334.15 = 81,263.70/x
  3. Step 3: Cross multiply
    199,726.20x = 299,334.15 × 81,263.70
  4. Step 4: Simplify right side
    199,726.20x = 24,325,000,565.36
  5. Step 5: Solve for x
    x = 24,325,000,565.36/199,726.20
  6. Step 6: Final answer
    x = 121,791.74

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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.