Home / 119,905.57-165,470.85-66,189.43

Finding the Fourth Proportional to 119,905.57, 165,470.85 and 66,189.43

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Solution

The fourth proportional to 119,905.57, 165,470.85 and 66,189.43 is: 91,342.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,905.57 : 165,470.85 = 66,189.43 : x
  2. Step 2: Convert to fraction form
    119,905.57/165,470.85 = 66,189.43/x
  3. Step 3: Cross multiply
    119,905.57x = 165,470.85 × 66,189.43
  4. Step 4: Simplify right side
    119,905.57x = 10,952,420,084.81
  5. Step 5: Solve for x
    x = 10,952,420,084.81/119,905.57
  6. Step 6: Final answer
    x = 91,342.05

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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.