Home / 115,738.64-173,606.72-87,830.09

Finding the Fourth Proportional to 115,738.64, 173,606.72 and 87,830.09

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Solution

The fourth proportional to 115,738.64, 173,606.72 and 87,830.09 is: 131,744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,738.64 : 173,606.72 = 87,830.09 : x
  2. Step 2: Convert to fraction form
    115,738.64/173,606.72 = 87,830.09/x
  3. Step 3: Cross multiply
    115,738.64x = 173,606.72 × 87,830.09
  4. Step 4: Simplify right side
    115,738.64x = 15,247,892,535.02
  5. Step 5: Solve for x
    x = 15,247,892,535.02/115,738.64
  6. Step 6: Final answer
    x = 131,744.19

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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.