Home / 140,600.40-194,028.54-76,938.20

Finding the Fourth Proportional to 140,600.40, 194,028.54 and 76,938.20

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Solution

The fourth proportional to 140,600.40, 194,028.54 and 76,938.20 is: 106,174.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,600.40 : 194,028.54 = 76,938.20 : x
  2. Step 2: Convert to fraction form
    140,600.40/194,028.54 = 76,938.20/x
  3. Step 3: Cross multiply
    140,600.40x = 194,028.54 × 76,938.20
  4. Step 4: Simplify right side
    140,600.40x = 14,928,205,646.09
  5. Step 5: Solve for x
    x = 14,928,205,646.09/140,600.40
  6. Step 6: Final answer
    x = 106,174.70

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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.