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Finding the Fourth Proportional to 119,664.95, 165,135.51 and 65,950.20

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Solution

The fourth proportional to 119,664.95, 165,135.51 and 65,950.20 is: 91,010.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,664.95 : 165,135.51 = 65,950.20 : x
  2. Step 2: Convert to fraction form
    119,664.95/165,135.51 = 65,950.20/x
  3. Step 3: Cross multiply
    119,664.95x = 165,135.51 × 65,950.20
  4. Step 4: Simplify right side
    119,664.95x = 10,890,719,911.60
  5. Step 5: Solve for x
    x = 10,890,719,911.60/119,664.95
  6. Step 6: Final answer
    x = 91,010.11

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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.