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Finding the Fourth Proportional to 119,882.93, 165,440.21 and 66,170.21

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Solution

The fourth proportional to 119,882.93, 165,440.21 and 66,170.21 is: 91,315.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,882.93 : 165,440.21 = 66,170.21 : x
  2. Step 2: Convert to fraction form
    119,882.93/165,440.21 = 66,170.21/x
  3. Step 3: Cross multiply
    119,882.93x = 165,440.21 × 66,170.21
  4. Step 4: Simplify right side
    119,882.93x = 10,947,212,280.09
  5. Step 5: Solve for x
    x = 10,947,212,280.09/119,882.93
  6. Step 6: Final answer
    x = 91,315.86

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1.5x scale

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.