Home / 220,101.30-330,281.55-79,841.70

Finding the Fourth Proportional to 220,101.30, 330,281.55 and 79,841.70

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Solution

The fourth proportional to 220,101.30, 330,281.55 and 79,841.70 is: 119,809.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,101.30 : 330,281.55 = 79,841.70 : x
  2. Step 2: Convert to fraction form
    220,101.30/330,281.55 = 79,841.70/x
  3. Step 3: Cross multiply
    220,101.30x = 330,281.55 × 79,841.70
  4. Step 4: Simplify right side
    220,101.30x = 26,370,240,430.64
  5. Step 5: Solve for x
    x = 26,370,240,430.64/220,101.30
  6. Step 6: Final answer
    x = 119,809.56

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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.