Home / 83,686.44-126,105.33-69,220.92

Finding the Fourth Proportional to 83,686.44, 126,105.33 and 69,220.92

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Solution

The fourth proportional to 83,686.44, 126,105.33 and 69,220.92 is: 104,307.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,686.44 : 126,105.33 = 69,220.92 : x
  2. Step 2: Convert to fraction form
    83,686.44/126,105.33 = 69,220.92/x
  3. Step 3: Cross multiply
    83,686.44x = 126,105.33 × 69,220.92
  4. Step 4: Simplify right side
    83,686.44x = 8,729,126,959.50
  5. Step 5: Solve for x
    x = 8,729,126,959.50/83,686.44
  6. Step 6: Final answer
    x = 104,307.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.