Home / 139,147.92-208,537.28-75,805.52

Finding the Fourth Proportional to 139,147.92, 208,537.28 and 75,805.52

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Solution

The fourth proportional to 139,147.92, 208,537.28 and 75,805.52 is: 113,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,147.92 : 208,537.28 = 75,805.52 : x
  2. Step 2: Convert to fraction form
    139,147.92/208,537.28 = 75,805.52/x
  3. Step 3: Cross multiply
    139,147.92x = 208,537.28 × 75,805.52
  4. Step 4: Simplify right side
    139,147.92x = 15,808,276,949.79
  5. Step 5: Solve for x
    x = 15,808,276,949.79/139,147.92
  6. Step 6: Final answer
    x = 113,607.71

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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.