Home / 146,542.40-220,072.80-113,343.20

Finding the Fourth Proportional to 146,542.40, 220,072.80 and 113,343.20

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Solution

The fourth proportional to 146,542.40, 220,072.80 and 113,343.20 is: 170,215.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,542.40 : 220,072.80 = 113,343.20 : x
  2. Step 2: Convert to fraction form
    146,542.40/220,072.80 = 113,343.20/x
  3. Step 3: Cross multiply
    146,542.40x = 220,072.80 × 113,343.20
  4. Step 4: Simplify right side
    146,542.40x = 24,943,755,384.96
  5. Step 5: Solve for x
    x = 24,943,755,384.96/146,542.40
  6. Step 6: Final answer
    x = 170,215.28

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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.