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Finding the Fourth Proportional to 119,102.52, 164,360.76 and 65,388.42

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Solution

The fourth proportional to 119,102.52, 164,360.76 and 65,388.42 is: 90,235.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,102.52 : 164,360.76 = 65,388.42 : x
  2. Step 2: Convert to fraction form
    119,102.52/164,360.76 = 65,388.42/x
  3. Step 3: Cross multiply
    119,102.52x = 164,360.76 × 65,388.42
  4. Step 4: Simplify right side
    119,102.52x = 10,747,290,406.40
  5. Step 5: Solve for x
    x = 10,747,290,406.40/119,102.52
  6. Step 6: Final answer
    x = 90,235.63

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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.