Home / 126,120.95-173,948.45-80,803.11

Finding the Fourth Proportional to 126,120.95, 173,948.45 and 80,803.11

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Solution

The fourth proportional to 126,120.95, 173,948.45 and 80,803.11 is: 111,445.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,120.95 : 173,948.45 = 80,803.11 : x
  2. Step 2: Convert to fraction form
    126,120.95/173,948.45 = 80,803.11/x
  3. Step 3: Cross multiply
    126,120.95x = 173,948.45 × 80,803.11
  4. Step 4: Simplify right side
    126,120.95x = 14,055,575,335.66
  5. Step 5: Solve for x
    x = 14,055,575,335.66/126,120.95
  6. Step 6: Final answer
    x = 111,445.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.