Home / 126,971.72-174,821.98-107,811.17

Finding the Fourth Proportional to 126,971.72, 174,821.98 and 107,811.17

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Solution

The fourth proportional to 126,971.72, 174,821.98 and 107,811.17 is: 148,440.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,971.72 : 174,821.98 = 107,811.17 : x
  2. Step 2: Convert to fraction form
    126,971.72/174,821.98 = 107,811.17/x
  3. Step 3: Cross multiply
    126,971.72x = 174,821.98 × 107,811.17
  4. Step 4: Simplify right side
    126,971.72x = 18,847,762,205.52
  5. Step 5: Solve for x
    x = 18,847,762,205.52/126,971.72
  6. Step 6: Final answer
    x = 148,440.63

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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.