Home / 189,147.28-261,002.64-104,248

Finding the Fourth Proportional to 189,147.28, 261,002.64 and 104,248

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Solution

The fourth proportional to 189,147.28, 261,002.64 and 104,248 is: 143,850.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,147.28 : 261,002.64 = 104,248 : x
  2. Step 2: Convert to fraction form
    189,147.28/261,002.64 = 104,248/x
  3. Step 3: Cross multiply
    189,147.28x = 261,002.64 × 104,248
  4. Step 4: Simplify right side
    189,147.28x = 27,209,003,214.72
  5. Step 5: Solve for x
    x = 27,209,003,214.72/189,147.28
  6. Step 6: Final answer
    x = 143,850.88

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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.