Home / 189,338.89-261,251.98-112,865.11

Finding the Fourth Proportional to 189,338.89, 261,251.98 and 112,865.11

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Solution

The fourth proportional to 189,338.89, 261,251.98 and 112,865.11 is: 155,732.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,338.89 : 261,251.98 = 112,865.11 : x
  2. Step 2: Convert to fraction form
    189,338.89/261,251.98 = 112,865.11/x
  3. Step 3: Cross multiply
    189,338.89x = 261,251.98 × 112,865.11
  4. Step 4: Simplify right side
    189,338.89x = 29,486,233,460.42
  5. Step 5: Solve for x
    x = 29,486,233,460.42/189,338.89
  6. Step 6: Final answer
    x = 155,732.58

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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.