Home / 126,426.69-174,474.14-72,711.75

Finding the Fourth Proportional to 126,426.69, 174,474.14 and 72,711.75

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Solution

The fourth proportional to 126,426.69, 174,474.14 and 72,711.75 is: 100,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,426.69 : 174,474.14 = 72,711.75 : x
  2. Step 2: Convert to fraction form
    126,426.69/174,474.14 = 72,711.75/x
  3. Step 3: Cross multiply
    126,426.69x = 174,474.14 × 72,711.75
  4. Step 4: Simplify right side
    126,426.69x = 12,686,320,049.15
  5. Step 5: Solve for x
    x = 12,686,320,049.15/126,426.69
  6. Step 6: Final answer
    x = 100,345.27

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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.