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Finding the Fourth Proportional to 101,466.72, 140,012.07 and 56,138.73

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Solution

The fourth proportional to 101,466.72, 140,012.07 and 56,138.73 is: 77,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,466.72 : 140,012.07 = 56,138.73 : x
  2. Step 2: Convert to fraction form
    101,466.72/140,012.07 = 56,138.73/x
  3. Step 3: Cross multiply
    101,466.72x = 140,012.07 × 56,138.73
  4. Step 4: Simplify right side
    101,466.72x = 7,860,099,794.47
  5. Step 5: Solve for x
    x = 7,860,099,794.47/101,466.72
  6. Step 6: Final answer
    x = 77,464.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.