Home / 199,578.12-275,444.51-126,988.14

Finding the Fourth Proportional to 199,578.12, 275,444.51 and 126,988.14

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Solution

The fourth proportional to 199,578.12, 275,444.51 and 126,988.14 is: 175,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,578.12 : 275,444.51 = 126,988.14 : x
  2. Step 2: Convert to fraction form
    199,578.12/275,444.51 = 126,988.14/x
  3. Step 3: Cross multiply
    199,578.12x = 275,444.51 × 126,988.14
  4. Step 4: Simplify right side
    199,578.12x = 34,978,185,998.11
  5. Step 5: Solve for x
    x = 34,978,185,998.11/199,578.12
  6. Step 6: Final answer
    x = 175,260.62

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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.