Home / 129,499.40-194,658.70-122,126.60

Finding the Fourth Proportional to 129,499.40, 194,658.70 and 122,126.60

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Solution

The fourth proportional to 129,499.40, 194,658.70 and 122,126.60 is: 183,576.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,499.40 : 194,658.70 = 122,126.60 : x
  2. Step 2: Convert to fraction form
    129,499.40/194,658.70 = 122,126.60/x
  3. Step 3: Cross multiply
    129,499.40x = 194,658.70 × 122,126.60
  4. Step 4: Simplify right side
    129,499.40x = 23,773,005,191.42
  5. Step 5: Solve for x
    x = 23,773,005,191.42/129,499.40
  6. Step 6: Final answer
    x = 183,576.18

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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.