Home / 139,235.52-192,145.38-75,573.31

Finding the Fourth Proportional to 139,235.52, 192,145.38 and 75,573.31

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Solution

The fourth proportional to 139,235.52, 192,145.38 and 75,573.31 is: 104,291.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,235.52 : 192,145.38 = 75,573.31 : x
  2. Step 2: Convert to fraction form
    139,235.52/192,145.38 = 75,573.31/x
  3. Step 3: Cross multiply
    139,235.52x = 192,145.38 × 75,573.31
  4. Step 4: Simplify right side
    139,235.52x = 14,521,062,367.81
  5. Step 5: Solve for x
    x = 14,521,062,367.81/139,235.52
  6. Step 6: Final answer
    x = 104,291.36

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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.