Home / 126,958.64-175,208.61-72,515.54

Finding the Fourth Proportional to 126,958.64, 175,208.61 and 72,515.54

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Solution

The fourth proportional to 126,958.64, 175,208.61 and 72,515.54 is: 100,074.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,958.64 : 175,208.61 = 72,515.54 : x
  2. Step 2: Convert to fraction form
    126,958.64/175,208.61 = 72,515.54/x
  3. Step 3: Cross multiply
    126,958.64x = 175,208.61 × 72,515.54
  4. Step 4: Simplify right side
    126,958.64x = 12,705,346,966.80
  5. Step 5: Solve for x
    x = 12,705,346,966.80/126,958.64
  6. Step 6: Final answer
    x = 100,074.69

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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.