Home / 199,509.78-275,330.10-108,870.70

Finding the Fourth Proportional to 199,509.78, 275,330.10 and 108,870.70

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Solution

The fourth proportional to 199,509.78, 275,330.10 and 108,870.70 is: 150,245.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,509.78 : 275,330.10 = 108,870.70 : x
  2. Step 2: Convert to fraction form
    199,509.78/275,330.10 = 108,870.70/x
  3. Step 3: Cross multiply
    199,509.78x = 275,330.10 × 108,870.70
  4. Step 4: Simplify right side
    199,509.78x = 29,975,380,718.07
  5. Step 5: Solve for x
    x = 29,975,380,718.07/199,509.78
  6. Step 6: Final answer
    x = 150,245.17

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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.