Home / 139,429.04-192,411.92-75,766.68

Finding the Fourth Proportional to 139,429.04, 192,411.92 and 75,766.68

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Solution

The fourth proportional to 139,429.04, 192,411.92 and 75,766.68 is: 104,557.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,429.04 : 192,411.92 = 75,766.68 : x
  2. Step 2: Convert to fraction form
    139,429.04/192,411.92 = 75,766.68/x
  3. Step 3: Cross multiply
    139,429.04x = 192,411.92 × 75,766.68
  4. Step 4: Simplify right side
    139,429.04x = 14,578,412,560.24
  5. Step 5: Solve for x
    x = 14,578,412,560.24/139,429.04
  6. Step 6: Final answer
    x = 104,557.94

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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.