Home / 199,655.10-275,516.78-109,009.38

Finding the Fourth Proportional to 199,655.10, 275,516.78 and 109,009.38

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Solution

The fourth proportional to 199,655.10, 275,516.78 and 109,009.38 is: 150,428.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,655.10 : 275,516.78 = 109,009.38 : x
  2. Step 2: Convert to fraction form
    199,655.10/275,516.78 = 109,009.38/x
  3. Step 3: Cross multiply
    199,655.10x = 275,516.78 × 109,009.38
  4. Step 4: Simplify right side
    199,655.10x = 30,033,913,367.40
  5. Step 5: Solve for x
    x = 30,033,913,367.40/199,655.10
  6. Step 6: Final answer
    x = 150,428.98

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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.