Home / 220,100.55-330,026.79-70,305.63

Finding the Fourth Proportional to 220,100.55, 330,026.79 and 70,305.63

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Solution

The fourth proportional to 220,100.55, 330,026.79 and 70,305.63 is: 105,418.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,100.55 : 330,026.79 = 70,305.63 : x
  2. Step 2: Convert to fraction form
    220,100.55/330,026.79 = 70,305.63/x
  3. Step 3: Cross multiply
    220,100.55x = 330,026.79 × 70,305.63
  4. Step 4: Simplify right side
    220,100.55x = 23,202,741,387.83
  5. Step 5: Solve for x
    x = 23,202,741,387.83/220,100.55
  6. Step 6: Final answer
    x = 105,418.83

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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.