Home / 126,135.74-174,818.68-123,773.78

Finding the Fourth Proportional to 126,135.74, 174,818.68 and 123,773.78

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Solution

The fourth proportional to 126,135.74, 174,818.68 and 123,773.78 is: 171,545.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,135.74 : 174,818.68 = 123,773.78 : x
  2. Step 2: Convert to fraction form
    126,135.74/174,818.68 = 123,773.78/x
  3. Step 3: Cross multiply
    126,135.74x = 174,818.68 × 123,773.78
  4. Step 4: Simplify right side
    126,135.74x = 21,637,968,838.21
  5. Step 5: Solve for x
    x = 21,637,968,838.21/126,135.74
  6. Step 6: Final answer
    x = 171,545.11

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.