Home / 126,132.74-174,814.54-123,770.78

Finding the Fourth Proportional to 126,132.74, 174,814.54 and 123,770.78

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Solution

The fourth proportional to 126,132.74, 174,814.54 and 123,770.78 is: 171,540.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,132.74 : 174,814.54 = 123,770.78 : x
  2. Step 2: Convert to fraction form
    126,132.74/174,814.54 = 123,770.78/x
  3. Step 3: Cross multiply
    126,132.74x = 174,814.54 × 123,770.78
  4. Step 4: Simplify right side
    126,132.74x = 21,636,931,971.14
  5. Step 5: Solve for x
    x = 21,636,931,971.14/126,132.74
  6. Step 6: Final answer
    x = 171,540.97

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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.