Home / 129,743.76-194,546.40-66,538.23

Finding the Fourth Proportional to 129,743.76, 194,546.40 and 66,538.23

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Solution

The fourth proportional to 129,743.76, 194,546.40 and 66,538.23 is: 99,771.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,743.76 : 194,546.40 = 66,538.23 : x
  2. Step 2: Convert to fraction form
    129,743.76/194,546.40 = 66,538.23/x
  3. Step 3: Cross multiply
    129,743.76x = 194,546.40 × 66,538.23
  4. Step 4: Simplify right side
    129,743.76x = 12,944,773,108.87
  5. Step 5: Solve for x
    x = 12,944,773,108.87/129,743.76
  6. Step 6: Final answer
    x = 99,771.84

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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.