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Finding the Fourth Proportional to 145,092.87, 200,238.08 and 80,565.44

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Solution

The fourth proportional to 145,092.87, 200,238.08 and 80,565.44 is: 111,185.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,092.87 : 200,238.08 = 80,565.44 : x
  2. Step 2: Convert to fraction form
    145,092.87/200,238.08 = 80,565.44/x
  3. Step 3: Cross multiply
    145,092.87x = 200,238.08 × 80,565.44
  4. Step 4: Simplify right side
    145,092.87x = 16,132,267,615.94
  5. Step 5: Solve for x
    x = 16,132,267,615.94/145,092.87
  6. Step 6: Final answer
    x = 111,185.81

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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.