Home / 101,923.11-140,720.42-66,214.87

Finding the Fourth Proportional to 101,923.11, 140,720.42 and 66,214.87

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Solution

The fourth proportional to 101,923.11, 140,720.42 and 66,214.87 is: 91,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,923.11 : 140,720.42 = 66,214.87 : x
  2. Step 2: Convert to fraction form
    101,923.11/140,720.42 = 66,214.87/x
  3. Step 3: Cross multiply
    101,923.11x = 140,720.42 × 66,214.87
  4. Step 4: Simplify right side
    101,923.11x = 9,317,784,130.38
  5. Step 5: Solve for x
    x = 9,317,784,130.38/101,923.11
  6. Step 6: Final answer
    x = 91,419.74

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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.