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Finding the Fourth Proportional to 119,765.45, 165,272.77 and 66,050.45

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Solution

The fourth proportional to 119,765.45, 165,272.77 and 66,050.45 is: 91,147.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,765.45 : 165,272.77 = 66,050.45 : x
  2. Step 2: Convert to fraction form
    119,765.45/165,272.77 = 66,050.45/x
  3. Step 3: Cross multiply
    119,765.45x = 165,272.77 × 66,050.45
  4. Step 4: Simplify right side
    119,765.45x = 10,916,340,831.25
  5. Step 5: Solve for x
    x = 10,916,340,831.25/119,765.45
  6. Step 6: Final answer
    x = 91,147.66

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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.