Home / 228,939.89-315,952.98-126,974.66

Finding the Fourth Proportional to 228,939.89, 315,952.98 and 126,974.66

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Solution

The fourth proportional to 228,939.89, 315,952.98 and 126,974.66 is: 175,233.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,939.89 : 315,952.98 = 126,974.66 : x
  2. Step 2: Convert to fraction form
    228,939.89/315,952.98 = 126,974.66/x
  3. Step 3: Cross multiply
    228,939.89x = 315,952.98 × 126,974.66
  4. Step 4: Simplify right side
    228,939.89x = 40,118,022,211.49
  5. Step 5: Solve for x
    x = 40,118,022,211.49/228,939.89
  6. Step 6: Final answer
    x = 175,233.87

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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.