Home / 115,715.78-173,539.64-49,155.38

Finding the Fourth Proportional to 115,715.78, 173,539.64 and 49,155.38

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Solution

The fourth proportional to 115,715.78, 173,539.64 and 49,155.38 is: 73,718.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,715.78 : 173,539.64 = 49,155.38 : x
  2. Step 2: Convert to fraction form
    115,715.78/173,539.64 = 49,155.38/x
  3. Step 3: Cross multiply
    115,715.78x = 173,539.64 × 49,155.38
  4. Step 4: Simplify right side
    115,715.78x = 8,530,406,949.26
  5. Step 5: Solve for x
    x = 8,530,406,949.26/115,715.78
  6. Step 6: Final answer
    x = 73,718.61

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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.