Home / 115,729.64-173,594.46-109,819.88

Finding the Fourth Proportional to 115,729.64, 173,594.46 and 109,819.88

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Solution

The fourth proportional to 115,729.64, 173,594.46 and 109,819.88 is: 164,729.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,729.64 : 173,594.46 = 109,819.88 : x
  2. Step 2: Convert to fraction form
    115,729.64/173,594.46 = 109,819.88/x
  3. Step 3: Cross multiply
    115,729.64x = 173,594.46 × 109,819.88
  4. Step 4: Simplify right side
    115,729.64x = 19,064,122,765.86
  5. Step 5: Solve for x
    x = 19,064,122,765.86/115,729.64
  6. Step 6: Final answer
    x = 164,729.82

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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.