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Finding the Fourth Proportional to 179,687.90, 247,971.03 and 99,118.82

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Solution

The fourth proportional to 179,687.90, 247,971.03 and 99,118.82 is: 136,784.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,687.90 : 247,971.03 = 99,118.82 : x
  2. Step 2: Convert to fraction form
    179,687.90/247,971.03 = 99,118.82/x
  3. Step 3: Cross multiply
    179,687.90x = 247,971.03 × 99,118.82
  4. Step 4: Simplify right side
    179,687.90x = 24,578,595,887.78
  5. Step 5: Solve for x
    x = 24,578,595,887.78/179,687.90
  6. Step 6: Final answer
    x = 136,784.92

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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.