Home / 112,186.89-154,819.80-61,199.64

Finding the Fourth Proportional to 112,186.89, 154,819.80 and 61,199.64

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Solution

The fourth proportional to 112,186.89, 154,819.80 and 61,199.64 is: 84,456.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,186.89 : 154,819.80 = 61,199.64 : x
  2. Step 2: Convert to fraction form
    112,186.89/154,819.80 = 61,199.64/x
  3. Step 3: Cross multiply
    112,186.89x = 154,819.80 × 61,199.64
  4. Step 4: Simplify right side
    112,186.89x = 9,474,916,024.87
  5. Step 5: Solve for x
    x = 9,474,916,024.87/112,186.89
  6. Step 6: Final answer
    x = 84,456.54

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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.