Home / 153,940.15-230,923.32-54,091.72

Finding the Fourth Proportional to 153,940.15, 230,923.32 and 54,091.72

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Solution

The fourth proportional to 153,940.15, 230,923.32 and 54,091.72 is: 81,142.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,940.15 : 230,923.32 = 54,091.72 : x
  2. Step 2: Convert to fraction form
    153,940.15/230,923.32 = 54,091.72/x
  3. Step 3: Cross multiply
    153,940.15x = 230,923.32 × 54,091.72
  4. Step 4: Simplify right side
    153,940.15x = 12,491,039,566.91
  5. Step 5: Solve for x
    x = 12,491,039,566.91/153,940.15
  6. Step 6: Final answer
    x = 81,142.18

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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.