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Finding the Fourth Proportional to 101,466.87, 140,080.59 and 61,190.85

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Solution

The fourth proportional to 101,466.87, 140,080.59 and 61,190.85 is: 84,477.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,466.87 : 140,080.59 = 61,190.85 : x
  2. Step 2: Convert to fraction form
    101,466.87/140,080.59 = 61,190.85/x
  3. Step 3: Cross multiply
    101,466.87x = 140,080.59 × 61,190.85
  4. Step 4: Simplify right side
    101,466.87x = 8,571,650,370.60
  5. Step 5: Solve for x
    x = 8,571,650,370.60/101,466.87
  6. Step 6: Final answer
    x = 84,477.33

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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.