Home / 129,726.50-194,597.95-54,836.79

Finding the Fourth Proportional to 129,726.50, 194,597.95 and 54,836.79

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Solution

The fourth proportional to 129,726.50, 194,597.95 and 54,836.79 is: 82,258.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,726.50 : 194,597.95 = 54,836.79 : x
  2. Step 2: Convert to fraction form
    129,726.50/194,597.95 = 54,836.79/x
  3. Step 3: Cross multiply
    129,726.50x = 194,597.95 × 54,836.79
  4. Step 4: Simplify right side
    129,726.50x = 10,671,126,918.58
  5. Step 5: Solve for x
    x = 10,671,126,918.58/129,726.50
  6. Step 6: Final answer
    x = 82,258.65

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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.