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Finding the Fourth Proportional to 179,378.82, 268,936.47 and 85,950.18

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Solution

The fourth proportional to 179,378.82, 268,936.47 and 85,950.18 is: 128,862.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,378.82 : 268,936.47 = 85,950.18 : x
  2. Step 2: Convert to fraction form
    179,378.82/268,936.47 = 85,950.18/x
  3. Step 3: Cross multiply
    179,378.82x = 268,936.47 × 85,950.18
  4. Step 4: Simplify right side
    179,378.82x = 23,115,138,005.06
  5. Step 5: Solve for x
    x = 23,115,138,005.06/179,378.82
  6. Step 6: Final answer
    x = 128,862.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.