Home / 129,899.60-194,849.40-122,123.60

Finding the Fourth Proportional to 129,899.60, 194,849.40 and 122,123.60

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Solution

The fourth proportional to 129,899.60, 194,849.40 and 122,123.60 is: 183,185.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,899.60 : 194,849.40 = 122,123.60 : x
  2. Step 2: Convert to fraction form
    129,899.60/194,849.40 = 122,123.60/x
  3. Step 3: Cross multiply
    129,899.60x = 194,849.40 × 122,123.60
  4. Step 4: Simplify right side
    129,899.60x = 23,795,710,185.84
  5. Step 5: Solve for x
    x = 23,795,710,185.84/129,899.60
  6. Step 6: Final answer
    x = 183,185.40

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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.