Home / 126,169.08-174,105.38-72,416.28

Finding the Fourth Proportional to 126,169.08, 174,105.38 and 72,416.28

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Solution

The fourth proportional to 126,169.08, 174,105.38 and 72,416.28 is: 99,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,169.08 : 174,105.38 = 72,416.28 : x
  2. Step 2: Convert to fraction form
    126,169.08/174,105.38 = 72,416.28/x
  3. Step 3: Cross multiply
    126,169.08x = 174,105.38 × 72,416.28
  4. Step 4: Simplify right side
    126,169.08x = 12,608,063,947.59
  5. Step 5: Solve for x
    x = 12,608,063,947.59/126,169.08
  6. Step 6: Final answer
    x = 99,929.90

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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.