Home / 133,943.10-200,623.05-81,260.70

Finding the Fourth Proportional to 133,943.10, 200,623.05 and 81,260.70

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Solution

The fourth proportional to 133,943.10, 200,623.05 and 81,260.70 is: 121,714.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,943.10 : 200,623.05 = 81,260.70 : x
  2. Step 2: Convert to fraction form
    133,943.10/200,623.05 = 81,260.70/x
  3. Step 3: Cross multiply
    133,943.10x = 200,623.05 × 81,260.70
  4. Step 4: Simplify right side
    133,943.10x = 16,302,769,479.14
  5. Step 5: Solve for x
    x = 16,302,769,479.14/133,943.10
  6. Step 6: Final answer
    x = 121,714.14

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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.