Home / 146,728.80-220,166.10-57,985.20

Finding the Fourth Proportional to 146,728.80, 220,166.10 and 57,985.20

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Solution

The fourth proportional to 146,728.80, 220,166.10 and 57,985.20 is: 87,006.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,728.80 : 220,166.10 = 57,985.20 : x
  2. Step 2: Convert to fraction form
    146,728.80/220,166.10 = 57,985.20/x
  3. Step 3: Cross multiply
    146,728.80x = 220,166.10 × 57,985.20
  4. Step 4: Simplify right side
    146,728.80x = 12,766,375,341.72
  5. Step 5: Solve for x
    x = 12,766,375,341.72/146,728.80
  6. Step 6: Final answer
    x = 87,006.61

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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.