Home / 129,274.50-194,093.34-66,139.90

Finding the Fourth Proportional to 129,274.50, 194,093.34 and 66,139.90

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Solution

The fourth proportional to 129,274.50, 194,093.34 and 66,139.90 is: 99,302.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,274.50 : 194,093.34 = 66,139.90 : x
  2. Step 2: Convert to fraction form
    129,274.50/194,093.34 = 66,139.90/x
  3. Step 3: Cross multiply
    129,274.50x = 194,093.34 × 66,139.90
  4. Step 4: Simplify right side
    129,274.50x = 12,837,314,098.27
  5. Step 5: Solve for x
    x = 12,837,314,098.27/129,274.50
  6. Step 6: Final answer
    x = 99,302.76

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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.