Home / 199,715.40-275,609.10-113,670.14

Finding the Fourth Proportional to 199,715.40, 275,609.10 and 113,670.14

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Solution

The fourth proportional to 199,715.40, 275,609.10 and 113,670.14 is: 156,865.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,715.40 : 275,609.10 = 113,670.14 : x
  2. Step 2: Convert to fraction form
    199,715.40/275,609.10 = 113,670.14/x
  3. Step 3: Cross multiply
    199,715.40x = 275,609.10 × 113,670.14
  4. Step 4: Simplify right side
    199,715.40x = 31,328,524,982.27
  5. Step 5: Solve for x
    x = 31,328,524,982.27/199,715.40
  6. Step 6: Final answer
    x = 156,865.85

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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.