Home / 220,132.40-330,160.20-79,818.80

Finding the Fourth Proportional to 220,132.40, 330,160.20 and 79,818.80

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Solution

The fourth proportional to 220,132.40, 330,160.20 and 79,818.80 is: 119,714.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,132.40 : 330,160.20 = 79,818.80 : x
  2. Step 2: Convert to fraction form
    220,132.40/330,160.20 = 79,818.80/x
  3. Step 3: Cross multiply
    220,132.40x = 330,160.20 × 79,818.80
  4. Step 4: Simplify right side
    220,132.40x = 26,352,990,971.76
  5. Step 5: Solve for x
    x = 26,352,990,971.76/220,132.40
  6. Step 6: Final answer
    x = 119,714.28

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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.