Home / 139,352.08-192,306.21-75,688.51

Finding the Fourth Proportional to 139,352.08, 192,306.21 and 75,688.51

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Solution

The fourth proportional to 139,352.08, 192,306.21 and 75,688.51 is: 104,450.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,352.08 : 192,306.21 = 75,688.51 : x
  2. Step 2: Convert to fraction form
    139,352.08/192,306.21 = 75,688.51/x
  3. Step 3: Cross multiply
    139,352.08x = 192,306.21 × 75,688.51
  4. Step 4: Simplify right side
    139,352.08x = 14,555,370,498.65
  5. Step 5: Solve for x
    x = 14,555,370,498.65/139,352.08
  6. Step 6: Final answer
    x = 104,450.33

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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.