Home / 111,844.60-154,351.93-64,105.90

Finding the Fourth Proportional to 111,844.60, 154,351.93 and 64,105.90

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Solution

The fourth proportional to 111,844.60, 154,351.93 and 64,105.90 is: 88,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,844.60 : 154,351.93 = 64,105.90 : x
  2. Step 2: Convert to fraction form
    111,844.60/154,351.93 = 64,105.90/x
  3. Step 3: Cross multiply
    111,844.60x = 154,351.93 × 64,105.90
  4. Step 4: Simplify right side
    111,844.60x = 9,894,868,617.63
  5. Step 5: Solve for x
    x = 9,894,868,617.63/111,844.60
  6. Step 6: Final answer
    x = 88,469.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.