Home / 101,922.35-140,603.78-66,123.59

Finding the Fourth Proportional to 101,922.35, 140,603.78 and 66,123.59

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Solution

The fourth proportional to 101,922.35, 140,603.78 and 66,123.59 is: 91,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,922.35 : 140,603.78 = 66,123.59 : x
  2. Step 2: Convert to fraction form
    101,922.35/140,603.78 = 66,123.59/x
  3. Step 3: Cross multiply
    101,922.35x = 140,603.78 × 66,123.59
  4. Step 4: Simplify right side
    101,922.35x = 9,297,226,163.46
  5. Step 5: Solve for x
    x = 9,297,226,163.46/101,922.35
  6. Step 6: Final answer
    x = 91,218.72

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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.