Home / 146,742.20-220,113.30-136,827.80

Finding the Fourth Proportional to 146,742.20, 220,113.30 and 136,827.80

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Solution

The fourth proportional to 146,742.20, 220,113.30 and 136,827.80 is: 205,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,742.20 : 220,113.30 = 136,827.80 : x
  2. Step 2: Convert to fraction form
    146,742.20/220,113.30 = 136,827.80/x
  3. Step 3: Cross multiply
    146,742.20x = 220,113.30 × 136,827.80
  4. Step 4: Simplify right side
    146,742.20x = 30,117,618,589.74
  5. Step 5: Solve for x
    x = 30,117,618,589.74/146,742.20
  6. Step 6: Final answer
    x = 205,241.70

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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.