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Finding the Fourth Proportional to 140,762.57, 194,255.50 and 80,332.01

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Solution

The fourth proportional to 140,762.57, 194,255.50 and 80,332.01 is: 110,859.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,762.57 : 194,255.50 = 80,332.01 : x
  2. Step 2: Convert to fraction form
    140,762.57/194,255.50 = 80,332.01/x
  3. Step 3: Cross multiply
    140,762.57x = 194,255.50 × 80,332.01
  4. Step 4: Simplify right side
    140,762.57x = 15,604,933,596.45
  5. Step 5: Solve for x
    x = 15,604,933,596.45/140,762.57
  6. Step 6: Final answer
    x = 110,859.97

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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.