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Finding the Fourth Proportional to 146,999.20, 220,766.10 and 87,950.20

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Solution

The fourth proportional to 146,999.20, 220,766.10 and 87,950.20 is: 132,085.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,999.20 : 220,766.10 = 87,950.20 : x
  2. Step 2: Convert to fraction form
    146,999.20/220,766.10 = 87,950.20/x
  3. Step 3: Cross multiply
    146,999.20x = 220,766.10 × 87,950.20
  4. Step 4: Simplify right side
    146,999.20x = 19,416,422,648.22
  5. Step 5: Solve for x
    x = 19,416,422,648.22/146,999.20
  6. Step 6: Final answer
    x = 132,085.23

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1.5x scale

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.