Home / 130,421.75-195,605.81-82,375.71

Finding the Fourth Proportional to 130,421.75, 195,605.81 and 82,375.71

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Solution

The fourth proportional to 130,421.75, 195,605.81 and 82,375.71 is: 123,546.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,421.75 : 195,605.81 = 82,375.71 : x
  2. Step 2: Convert to fraction form
    130,421.75/195,605.81 = 82,375.71/x
  3. Step 3: Cross multiply
    130,421.75x = 195,605.81 × 82,375.71
  4. Step 4: Simplify right side
    130,421.75x = 16,113,167,424.21
  5. Step 5: Solve for x
    x = 16,113,167,424.21/130,421.75
  6. Step 6: Final answer
    x = 123,546.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.