Home / 126,187.96-174,139.05-72,476.46

Finding the Fourth Proportional to 126,187.96, 174,139.05 and 72,476.46

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Solution

The fourth proportional to 126,187.96, 174,139.05 and 72,476.46 is: 100,017.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,187.96 : 174,139.05 = 72,476.46 : x
  2. Step 2: Convert to fraction form
    126,187.96/174,139.05 = 72,476.46/x
  3. Step 3: Cross multiply
    126,187.96x = 174,139.05 × 72,476.46
  4. Step 4: Simplify right side
    126,187.96x = 12,620,981,891.76
  5. Step 5: Solve for x
    x = 12,620,981,891.76/126,187.96
  6. Step 6: Final answer
    x = 100,017.32

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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.