Home / 126,278.16-174,326.94-78,546.84

Finding the Fourth Proportional to 126,278.16, 174,326.94 and 78,546.84

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Solution

The fourth proportional to 126,278.16, 174,326.94 and 78,546.84 is: 108,433.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,278.16 : 174,326.94 = 78,546.84 : x
  2. Step 2: Convert to fraction form
    126,278.16/174,326.94 = 78,546.84/x
  3. Step 3: Cross multiply
    126,278.16x = 174,326.94 × 78,546.84
  4. Step 4: Simplify right side
    126,278.16x = 13,692,830,263.87
  5. Step 5: Solve for x
    x = 13,692,830,263.87/126,278.16
  6. Step 6: Final answer
    x = 108,433.88

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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.