Home / 126,979.32-175,231.98-70,391.64

Finding the Fourth Proportional to 126,979.32, 175,231.98 and 70,391.64

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Solution

The fourth proportional to 126,979.32, 175,231.98 and 70,391.64 is: 97,140.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,979.32 : 175,231.98 = 70,391.64 : x
  2. Step 2: Convert to fraction form
    126,979.32/175,231.98 = 70,391.64/x
  3. Step 3: Cross multiply
    126,979.32x = 175,231.98 × 70,391.64
  4. Step 4: Simplify right side
    126,979.32x = 12,334,866,452.65
  5. Step 5: Solve for x
    x = 12,334,866,452.65/126,979.32
  6. Step 6: Final answer
    x = 97,140.75

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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.