Home / 139,234.20-192,140.79-75,570.63

Finding the Fourth Proportional to 139,234.20, 192,140.79 and 75,570.63

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Solution

The fourth proportional to 139,234.20, 192,140.79 and 75,570.63 is: 104,286.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,234.20 : 192,140.79 = 75,570.63 : x
  2. Step 2: Convert to fraction form
    139,234.20/192,140.79 = 75,570.63/x
  3. Step 3: Cross multiply
    139,234.20x = 192,140.79 × 75,570.63
  4. Step 4: Simplify right side
    139,234.20x = 14,520,200,549.00
  5. Step 5: Solve for x
    x = 14,520,200,549.00/139,234.20
  6. Step 6: Final answer
    x = 104,286.16

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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.