Home / 126,906.72-175,131.36-70,319.04

Finding the Fourth Proportional to 126,906.72, 175,131.36 and 70,319.04

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Solution

The fourth proportional to 126,906.72, 175,131.36 and 70,319.04 is: 97,040.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,906.72 : 175,131.36 = 70,319.04 : x
  2. Step 2: Convert to fraction form
    126,906.72/175,131.36 = 70,319.04/x
  3. Step 3: Cross multiply
    126,906.72x = 175,131.36 × 70,319.04
  4. Step 4: Simplify right side
    126,906.72x = 12,315,069,109.09
  5. Step 5: Solve for x
    x = 12,315,069,109.09/126,906.72
  6. Step 6: Final answer
    x = 97,040.32

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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.