Home / 129,972.24-194,874.30-85,464.18

Finding the Fourth Proportional to 129,972.24, 194,874.30 and 85,464.18

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Solution

The fourth proportional to 129,972.24, 194,874.30 and 85,464.18 is: 128,141.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,972.24 : 194,874.30 = 85,464.18 : x
  2. Step 2: Convert to fraction form
    129,972.24/194,874.30 = 85,464.18/x
  3. Step 3: Cross multiply
    129,972.24x = 194,874.30 × 85,464.18
  4. Step 4: Simplify right side
    129,972.24x = 16,654,772,252.57
  5. Step 5: Solve for x
    x = 16,654,772,252.57/129,972.24
  6. Step 6: Final answer
    x = 128,141.00

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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.