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Finding the Fourth Proportional to 119,710.85, 165,202.04 and 65,997.76

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Solution

The fourth proportional to 119,710.85, 165,202.04 and 65,997.76 is: 91,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,710.85 : 165,202.04 = 65,997.76 : x
  2. Step 2: Convert to fraction form
    119,710.85/165,202.04 = 65,997.76/x
  3. Step 3: Cross multiply
    119,710.85x = 165,202.04 × 65,997.76
  4. Step 4: Simplify right side
    119,710.85x = 10,902,964,587.43
  5. Step 5: Solve for x
    x = 10,902,964,587.43/119,710.85
  6. Step 6: Final answer
    x = 91,077.50

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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.