Home / 100,609.24-138,851.70-62,358.60

Finding the Fourth Proportional to 100,609.24, 138,851.70 and 62,358.60

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Solution

The fourth proportional to 100,609.24, 138,851.70 and 62,358.60 is: 86,061.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,609.24 : 138,851.70 = 62,358.60 : x
  2. Step 2: Convert to fraction form
    100,609.24/138,851.70 = 62,358.60/x
  3. Step 3: Cross multiply
    100,609.24x = 138,851.70 × 62,358.60
  4. Step 4: Simplify right side
    100,609.24x = 8,658,597,619.62
  5. Step 5: Solve for x
    x = 8,658,597,619.62/100,609.24
  6. Step 6: Final answer
    x = 86,061.65

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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.