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Finding the Fourth Proportional to 112,044, 154,620.72 and 61,743

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Solution

The fourth proportional to 112,044, 154,620.72 and 61,743 is: 85,205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,044 : 154,620.72 = 61,743 : x
  2. Step 2: Convert to fraction form
    112,044/154,620.72 = 61,743/x
  3. Step 3: Cross multiply
    112,044x = 154,620.72 × 61,743
  4. Step 4: Simplify right side
    112,044x = 9,546,747,114.96
  5. Step 5: Solve for x
    x = 9,546,747,114.96/112,044
  6. Step 6: Final answer
    x = 85,205.34

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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.