Home / 139,235.68-192,145.61-75,573.48

Finding the Fourth Proportional to 139,235.68, 192,145.61 and 75,573.48

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Solution

The fourth proportional to 139,235.68, 192,145.61 and 75,573.48 is: 104,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,235.68 : 192,145.61 = 75,573.48 : x
  2. Step 2: Convert to fraction form
    139,235.68/192,145.61 = 75,573.48/x
  3. Step 3: Cross multiply
    139,235.68x = 192,145.61 × 75,573.48
  4. Step 4: Simplify right side
    139,235.68x = 14,521,112,414.42
  5. Step 5: Solve for x
    x = 14,521,112,414.42/139,235.68
  6. Step 6: Final answer
    x = 104,291.60

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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.