Home / 126,700.38-174,770.50-83,679.95

Finding the Fourth Proportional to 126,700.38, 174,770.50 and 83,679.95

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Solution

The fourth proportional to 126,700.38, 174,770.50 and 83,679.95 is: 115,428.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,700.38 : 174,770.50 = 83,679.95 : x
  2. Step 2: Convert to fraction form
    126,700.38/174,770.50 = 83,679.95/x
  3. Step 3: Cross multiply
    126,700.38x = 174,770.50 × 83,679.95
  4. Step 4: Simplify right side
    126,700.38x = 14,624,786,701.48
  5. Step 5: Solve for x
    x = 14,624,786,701.48/126,700.38
  6. Step 6: Final answer
    x = 115,428.12

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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.