Home / 129,669.40-194,795.70-124,712.20

Finding the Fourth Proportional to 129,669.40, 194,795.70 and 124,712.20

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Solution

The fourth proportional to 129,669.40, 194,795.70 and 124,712.20 is: 187,348.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,669.40 : 194,795.70 = 124,712.20 : x
  2. Step 2: Convert to fraction form
    129,669.40/194,795.70 = 124,712.20/x
  3. Step 3: Cross multiply
    129,669.40x = 194,795.70 × 124,712.20
  4. Step 4: Simplify right side
    129,669.40x = 24,293,400,297.54
  5. Step 5: Solve for x
    x = 24,293,400,297.54/129,669.40
  6. Step 6: Final answer
    x = 187,348.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.