Home / 126,635.40-174,755.88-75,670.20

Finding the Fourth Proportional to 126,635.40, 174,755.88 and 75,670.20

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Solution

The fourth proportional to 126,635.40, 174,755.88 and 75,670.20 is: 104,424.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,635.40 : 174,755.88 = 75,670.20 : x
  2. Step 2: Convert to fraction form
    126,635.40/174,755.88 = 75,670.20/x
  3. Step 3: Cross multiply
    126,635.40x = 174,755.88 × 75,670.20
  4. Step 4: Simplify right side
    126,635.40x = 13,223,812,390.78
  5. Step 5: Solve for x
    x = 13,223,812,390.78/126,635.40
  6. Step 6: Final answer
    x = 104,424.30

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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.