Home / 139,535.36-192,556.16-75,872.64

Finding the Fourth Proportional to 139,535.36, 192,556.16 and 75,872.64

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Solution

The fourth proportional to 139,535.36, 192,556.16 and 75,872.64 is: 104,702.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,535.36 : 192,556.16 = 75,872.64 : x
  2. Step 2: Convert to fraction form
    139,535.36/192,556.16 = 75,872.64/x
  3. Step 3: Cross multiply
    139,535.36x = 192,556.16 × 75,872.64
  4. Step 4: Simplify right side
    139,535.36x = 14,609,744,207.46
  5. Step 5: Solve for x
    x = 14,609,744,207.46/139,535.36
  6. Step 6: Final answer
    x = 104,702.81

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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.