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Finding the Fourth Proportional to 179,506.78, 269,005.93 and 99,579.68

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Solution

The fourth proportional to 179,506.78, 269,005.93 and 99,579.68 is: 149,228.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,506.78 : 269,005.93 = 99,579.68 : x
  2. Step 2: Convert to fraction form
    179,506.78/269,005.93 = 99,579.68/x
  3. Step 3: Cross multiply
    179,506.78x = 269,005.93 × 99,579.68
  4. Step 4: Simplify right side
    179,506.78x = 26,787,523,082.47
  5. Step 5: Solve for x
    x = 26,787,523,082.47/179,506.78
  6. Step 6: Final answer
    x = 149,228.48

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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.