Home / 126,242.89-174,223.73-72,549.31

Finding the Fourth Proportional to 126,242.89, 174,223.73 and 72,549.31

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Solution

The fourth proportional to 126,242.89, 174,223.73 and 72,549.31 is: 100,122.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,242.89 : 174,223.73 = 72,549.31 : x
  2. Step 2: Convert to fraction form
    126,242.89/174,223.73 = 72,549.31/x
  3. Step 3: Cross multiply
    126,242.89x = 174,223.73 × 72,549.31
  4. Step 4: Simplify right side
    126,242.89x = 12,639,811,397.13
  5. Step 5: Solve for x
    x = 12,639,811,397.13/126,242.89
  6. Step 6: Final answer
    x = 100,122.96

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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.