Home / 115,919.30-173,738.55-49,219.40

Finding the Fourth Proportional to 115,919.30, 173,738.55 and 49,219.40

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Solution

The fourth proportional to 115,919.30, 173,738.55 and 49,219.40 is: 73,769.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,919.30 : 173,738.55 = 49,219.40 : x
  2. Step 2: Convert to fraction form
    115,919.30/173,738.55 = 49,219.40/x
  3. Step 3: Cross multiply
    115,919.30x = 173,738.55 × 49,219.40
  4. Step 4: Simplify right side
    115,919.30x = 8,551,307,187.87
  5. Step 5: Solve for x
    x = 8,551,307,187.87/115,919.30
  6. Step 6: Final answer
    x = 73,769.49

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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.