Home / 199,498.12-275,307.28-127,878.10

Finding the Fourth Proportional to 199,498.12, 275,307.28 and 127,878.10

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Solution

The fourth proportional to 199,498.12, 275,307.28 and 127,878.10 is: 176,471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,498.12 : 275,307.28 = 127,878.10 : x
  2. Step 2: Convert to fraction form
    199,498.12/275,307.28 = 127,878.10/x
  3. Step 3: Cross multiply
    199,498.12x = 275,307.28 × 127,878.10
  4. Step 4: Simplify right side
    199,498.12x = 35,205,770,874.60
  5. Step 5: Solve for x
    x = 35,205,770,874.60/199,498.12
  6. Step 6: Final answer
    x = 176,471.69

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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.