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Finding the Fourth Proportional to 179,605.86, 247,857.87 and 99,031.31

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Solution

The fourth proportional to 179,605.86, 247,857.87 and 99,031.31 is: 136,664.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,605.86 : 247,857.87 = 99,031.31 : x
  2. Step 2: Convert to fraction form
    179,605.86/247,857.87 = 99,031.31/x
  3. Step 3: Cross multiply
    179,605.86x = 247,857.87 × 99,031.31
  4. Step 4: Simplify right side
    179,605.86x = 24,545,689,621.45
  5. Step 5: Solve for x
    x = 24,545,689,621.45/179,605.86
  6. Step 6: Final answer
    x = 136,664.19

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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.