Home / 126,628.56-174,747.08-72,894

Finding the Fourth Proportional to 126,628.56, 174,747.08 and 72,894

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Solution

The fourth proportional to 126,628.56, 174,747.08 and 72,894 is: 100,593.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,628.56 : 174,747.08 = 72,894 : x
  2. Step 2: Convert to fraction form
    126,628.56/174,747.08 = 72,894/x
  3. Step 3: Cross multiply
    126,628.56x = 174,747.08 × 72,894
  4. Step 4: Simplify right side
    126,628.56x = 12,738,013,649.52
  5. Step 5: Solve for x
    x = 12,738,013,649.52/126,628.56
  6. Step 6: Final answer
    x = 100,593.53

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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.