Home / 126,117.95-173,944.31-80,800.11

Finding the Fourth Proportional to 126,117.95, 173,944.31 and 80,800.11

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Solution

The fourth proportional to 126,117.95, 173,944.31 and 80,800.11 is: 111,441.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,117.95 : 173,944.31 = 80,800.11 : x
  2. Step 2: Convert to fraction form
    126,117.95/173,944.31 = 80,800.11/x
  3. Step 3: Cross multiply
    126,117.95x = 173,944.31 × 80,800.11
  4. Step 4: Simplify right side
    126,117.95x = 14,054,718,977.87
  5. Step 5: Solve for x
    x = 14,054,718,977.87/126,117.95
  6. Step 6: Final answer
    x = 111,441.07

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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.