Home / 129,864.78-194,808.30-45,617.62

Finding the Fourth Proportional to 129,864.78, 194,808.30 and 45,617.62

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Solution

The fourth proportional to 129,864.78, 194,808.30 and 45,617.62 is: 68,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,864.78 : 194,808.30 = 45,617.62 : x
  2. Step 2: Convert to fraction form
    129,864.78/194,808.30 = 45,617.62/x
  3. Step 3: Cross multiply
    129,864.78x = 194,808.30 × 45,617.62
  4. Step 4: Simplify right side
    129,864.78x = 8,886,691,002.25
  5. Step 5: Solve for x
    x = 8,886,691,002.25/129,864.78
  6. Step 6: Final answer
    x = 68,430.34

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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.