Home / 101,922.57-140,719.76-66,214.35

Finding the Fourth Proportional to 101,922.57, 140,719.76 and 66,214.35

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Solution

The fourth proportional to 101,922.57, 140,719.76 and 66,214.35 is: 91,419.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,922.57 : 140,719.76 = 66,214.35 : x
  2. Step 2: Convert to fraction form
    101,922.57/140,719.76 = 66,214.35/x
  3. Step 3: Cross multiply
    101,922.57x = 140,719.76 × 66,214.35
  4. Step 4: Simplify right side
    101,922.57x = 9,317,667,440.56
  5. Step 5: Solve for x
    x = 9,317,667,440.56/101,922.57
  6. Step 6: Final answer
    x = 91,419.08

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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.