Home / 126,102.78-174,023.16-75,116.24

Finding the Fourth Proportional to 126,102.78, 174,023.16 and 75,116.24

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Solution

The fourth proportional to 126,102.78, 174,023.16 and 75,116.24 is: 103,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,102.78 : 174,023.16 = 75,116.24 : x
  2. Step 2: Convert to fraction form
    126,102.78/174,023.16 = 75,116.24/x
  3. Step 3: Cross multiply
    126,102.78x = 174,023.16 × 75,116.24
  4. Step 4: Simplify right side
    126,102.78x = 13,071,965,452.12
  5. Step 5: Solve for x
    x = 13,071,965,452.12/126,102.78
  6. Step 6: Final answer
    x = 103,661.20

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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.