Home / 140,728.78-211,087.30-40,886.97

Finding the Fourth Proportional to 140,728.78, 211,087.30 and 40,886.97

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Solution

The fourth proportional to 140,728.78, 211,087.30 and 40,886.97 is: 61,328.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,728.78 : 211,087.30 = 40,886.97 : x
  2. Step 2: Convert to fraction form
    140,728.78/211,087.30 = 40,886.97/x
  3. Step 3: Cross multiply
    140,728.78x = 211,087.30 × 40,886.97
  4. Step 4: Simplify right side
    140,728.78x = 8,630,720,102.48
  5. Step 5: Solve for x
    x = 8,630,720,102.48/140,728.78
  6. Step 6: Final answer
    x = 61,328.75

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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.