Home / 111,638.25-154,060.79-61,337.25

Finding the Fourth Proportional to 111,638.25, 154,060.79 and 61,337.25

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Solution

The fourth proportional to 111,638.25, 154,060.79 and 61,337.25 is: 84,645.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,638.25 : 154,060.79 = 61,337.25 : x
  2. Step 2: Convert to fraction form
    111,638.25/154,060.79 = 61,337.25/x
  3. Step 3: Cross multiply
    111,638.25x = 154,060.79 × 61,337.25
  4. Step 4: Simplify right side
    111,638.25x = 9,449,664,884.74
  5. Step 5: Solve for x
    x = 9,449,664,884.74/111,638.25
  6. Step 6: Final answer
    x = 84,645.41

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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.