Home / 135,326.20-202,989.30-52,220.20

Finding the Fourth Proportional to 135,326.20, 202,989.30 and 52,220.20

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Solution

The fourth proportional to 135,326.20, 202,989.30 and 52,220.20 is: 78,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,326.20 : 202,989.30 = 52,220.20 : x
  2. Step 2: Convert to fraction form
    135,326.20/202,989.30 = 52,220.20/x
  3. Step 3: Cross multiply
    135,326.20x = 202,989.30 × 52,220.20
  4. Step 4: Simplify right side
    135,326.20x = 10,600,141,843.86
  5. Step 5: Solve for x
    x = 10,600,141,843.86/135,326.20
  6. Step 6: Final answer
    x = 78,330.30

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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.