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Finding the Fourth Proportional to 154,022.80, 230,861.40 and 87,494.80

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Solution

The fourth proportional to 154,022.80, 230,861.40 and 87,494.80 is: 131,144.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,022.80 : 230,861.40 = 87,494.80 : x
  2. Step 2: Convert to fraction form
    154,022.80/230,861.40 = 87,494.80/x
  3. Step 3: Cross multiply
    154,022.80x = 230,861.40 × 87,494.80
  4. Step 4: Simplify right side
    154,022.80x = 20,199,172,020.72
  5. Step 5: Solve for x
    x = 20,199,172,020.72/154,022.80
  6. Step 6: Final answer
    x = 131,144.04

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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.