Home / 132,938.70-199,408.05-121,274.70

Finding the Fourth Proportional to 132,938.70, 199,408.05 and 121,274.70

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Solution

The fourth proportional to 132,938.70, 199,408.05 and 121,274.70 is: 181,912.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,938.70 : 199,408.05 = 121,274.70 : x
  2. Step 2: Convert to fraction form
    132,938.70/199,408.05 = 121,274.70/x
  3. Step 3: Cross multiply
    132,938.70x = 199,408.05 × 121,274.70
  4. Step 4: Simplify right side
    132,938.70x = 24,183,151,441.34
  5. Step 5: Solve for x
    x = 24,183,151,441.34/132,938.70
  6. Step 6: Final answer
    x = 181,912.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.