Home / 129,947.86-194,938.18-45,688.22

Finding the Fourth Proportional to 129,947.86, 194,938.18 and 45,688.22

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Solution

The fourth proportional to 129,947.86, 194,938.18 and 45,688.22 is: 68,538.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,947.86 : 194,938.18 = 45,688.22 : x
  2. Step 2: Convert to fraction form
    129,947.86/194,938.18 = 45,688.22/x
  3. Step 3: Cross multiply
    129,947.86x = 194,938.18 × 45,688.22
  4. Step 4: Simplify right side
    129,947.86x = 8,906,378,454.24
  5. Step 5: Solve for x
    x = 8,906,378,454.24/129,947.86
  6. Step 6: Final answer
    x = 68,538.09

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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.