Home / 141,289.08-194,969.10-77,629.56

Finding the Fourth Proportional to 141,289.08, 194,969.10 and 77,629.56

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Solution

The fourth proportional to 141,289.08, 194,969.10 and 77,629.56 is: 107,123.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,289.08 : 194,969.10 = 77,629.56 : x
  2. Step 2: Convert to fraction form
    141,289.08/194,969.10 = 77,629.56/x
  3. Step 3: Cross multiply
    141,289.08x = 194,969.10 × 77,629.56
  4. Step 4: Simplify right side
    141,289.08x = 15,135,365,446.60
  5. Step 5: Solve for x
    x = 15,135,365,446.60/141,289.08
  6. Step 6: Final answer
    x = 107,123.39

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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.