Home / 139,209.07-192,108.64-75,546.87

Finding the Fourth Proportional to 139,209.07, 192,108.64 and 75,546.87

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Solution

The fourth proportional to 139,209.07, 192,108.64 and 75,546.87 is: 104,254.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,209.07 : 192,108.64 = 75,546.87 : x
  2. Step 2: Convert to fraction form
    139,209.07/192,108.64 = 75,546.87/x
  3. Step 3: Cross multiply
    139,209.07x = 192,108.64 × 75,546.87
  4. Step 4: Simplify right side
    139,209.07x = 14,513,206,451.96
  5. Step 5: Solve for x
    x = 14,513,206,451.96/139,209.07
  6. Step 6: Final answer
    x = 104,254.75

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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.