Home / 127,839.38-176,419.55-70,480.80

Finding the Fourth Proportional to 127,839.38, 176,419.55 and 70,480.80

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Solution

The fourth proportional to 127,839.38, 176,419.55 and 70,480.80 is: 97,264.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,839.38 : 176,419.55 = 70,480.80 : x
  2. Step 2: Convert to fraction form
    127,839.38/176,419.55 = 70,480.80/x
  3. Step 3: Cross multiply
    127,839.38x = 176,419.55 × 70,480.80
  4. Step 4: Simplify right side
    127,839.38x = 12,434,191,195.84
  5. Step 5: Solve for x
    x = 12,434,191,195.84/127,839.38
  6. Step 6: Final answer
    x = 97,264.17

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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.