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Finding the Fourth Proportional to 140,768.60, 211,005.27 and 65,825.57

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Solution

The fourth proportional to 140,768.60, 211,005.27 and 65,825.57 is: 98,669.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,768.60 : 211,005.27 = 65,825.57 : x
  2. Step 2: Convert to fraction form
    140,768.60/211,005.27 = 65,825.57/x
  3. Step 3: Cross multiply
    140,768.60x = 211,005.27 × 65,825.57
  4. Step 4: Simplify right side
    140,768.60x = 13,889,542,698.27
  5. Step 5: Solve for x
    x = 13,889,542,698.27/140,768.60
  6. Step 6: Final answer
    x = 98,669.33

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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.