Home / 126,660-174,775.61-72,962.48

Finding the Fourth Proportional to 126,660, 174,775.61 and 72,962.48

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Solution

The fourth proportional to 126,660, 174,775.61 and 72,962.48 is: 100,679.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,660 : 174,775.61 = 72,962.48 : x
  2. Step 2: Convert to fraction form
    126,660/174,775.61 = 72,962.48/x
  3. Step 3: Cross multiply
    126,660x = 174,775.61 × 72,962.48
  4. Step 4: Simplify right side
    126,660x = 12,752,060,710.42
  5. Step 5: Solve for x
    x = 12,752,060,710.42/126,660
  6. Step 6: Final answer
    x = 100,679.46

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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.