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Finding the Fourth Proportional to 189,732, 261,832.72 and 104,851.04

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Solution

The fourth proportional to 189,732, 261,832.72 and 104,851.04 is: 144,695.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,732 : 261,832.72 = 104,851.04 : x
  2. Step 2: Convert to fraction form
    189,732/261,832.72 = 104,851.04/x
  3. Step 3: Cross multiply
    189,732x = 261,832.72 × 104,851.04
  4. Step 4: Simplify right side
    189,732x = 27,453,432,998.03
  5. Step 5: Solve for x
    x = 27,453,432,998.03/189,732
  6. Step 6: Final answer
    x = 144,695.85

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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.