Home / 119,847.76-165,390.45-66,134.36

Finding the Fourth Proportional to 119,847.76, 165,390.45 and 66,134.36

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Solution

The fourth proportional to 119,847.76, 165,390.45 and 66,134.36 is: 91,265.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,847.76 : 165,390.45 = 66,134.36 : x
  2. Step 2: Convert to fraction form
    119,847.76/165,390.45 = 66,134.36/x
  3. Step 3: Cross multiply
    119,847.76x = 165,390.45 × 66,134.36
  4. Step 4: Simplify right side
    119,847.76x = 10,937,991,560.86
  5. Step 5: Solve for x
    x = 10,937,991,560.86/119,847.76
  6. Step 6: Final answer
    x = 91,265.72

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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.