Home / 138,317.76-207,494.82-49,581.36

Finding the Fourth Proportional to 138,317.76, 207,494.82 and 49,581.36

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Solution

The fourth proportional to 138,317.76, 207,494.82 and 49,581.36 is: 74,378.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,317.76 : 207,494.82 = 49,581.36 : x
  2. Step 2: Convert to fraction form
    138,317.76/207,494.82 = 49,581.36/x
  3. Step 3: Cross multiply
    138,317.76x = 207,494.82 × 49,581.36
  4. Step 4: Simplify right side
    138,317.76x = 10,287,875,368.56
  5. Step 5: Solve for x
    x = 10,287,875,368.56/138,317.76
  6. Step 6: Final answer
    x = 74,378.56

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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.