Home / 119,709.60-165,200.40-65,996.70

Finding the Fourth Proportional to 119,709.60, 165,200.40 and 65,996.70

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Solution

The fourth proportional to 119,709.60, 165,200.40 and 65,996.70 is: 91,076.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,709.60 : 165,200.40 = 65,996.70 : x
  2. Step 2: Convert to fraction form
    119,709.60/165,200.40 = 65,996.70/x
  3. Step 3: Cross multiply
    119,709.60x = 165,200.40 × 65,996.70
  4. Step 4: Simplify right side
    119,709.60x = 10,902,681,238.68
  5. Step 5: Solve for x
    x = 10,902,681,238.68/119,709.60
  6. Step 6: Final answer
    x = 91,076.08

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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.