Home / 115,709.90-173,629.65-49,138.70

Finding the Fourth Proportional to 115,709.90, 173,629.65 and 49,138.70

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Solution

The fourth proportional to 115,709.90, 173,629.65 and 49,138.70 is: 73,735.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,709.90 : 173,629.65 = 49,138.70 : x
  2. Step 2: Convert to fraction form
    115,709.90/173,629.65 = 49,138.70/x
  3. Step 3: Cross multiply
    115,709.90x = 173,629.65 × 49,138.70
  4. Step 4: Simplify right side
    115,709.90x = 8,531,935,282.46
  5. Step 5: Solve for x
    x = 8,531,935,282.46/115,709.90
  6. Step 6: Final answer
    x = 73,735.57

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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.