Home / 139,520.61-192,546.32-75,857.04

Finding the Fourth Proportional to 139,520.61, 192,546.32 and 75,857.04

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Solution

The fourth proportional to 139,520.61, 192,546.32 and 75,857.04 is: 104,687.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,520.61 : 192,546.32 = 75,857.04 : x
  2. Step 2: Convert to fraction form
    139,520.61/192,546.32 = 75,857.04/x
  3. Step 3: Cross multiply
    139,520.61x = 192,546.32 × 75,857.04
  4. Step 4: Simplify right side
    139,520.61x = 14,605,993,518.81
  5. Step 5: Solve for x
    x = 14,605,993,518.81/139,520.61
  6. Step 6: Final answer
    x = 104,687.00

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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.