Home / 126,822.31-174,989.77-72,373.30

Finding the Fourth Proportional to 126,822.31, 174,989.77 and 72,373.30

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Solution

The fourth proportional to 126,822.31, 174,989.77 and 72,373.30 is: 99,860.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,822.31 : 174,989.77 = 72,373.30 : x
  2. Step 2: Convert to fraction form
    126,822.31/174,989.77 = 72,373.30/x
  3. Step 3: Cross multiply
    126,822.31x = 174,989.77 × 72,373.30
  4. Step 4: Simplify right side
    126,822.31x = 12,664,586,502.73
  5. Step 5: Solve for x
    x = 12,664,586,502.73/126,822.31
  6. Step 6: Final answer
    x = 99,860.87

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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.