Home / 139,390.19-192,357.96-75,727.43

Finding the Fourth Proportional to 139,390.19, 192,357.96 and 75,727.43

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Solution

The fourth proportional to 139,390.19, 192,357.96 and 75,727.43 is: 104,503.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,390.19 : 192,357.96 = 75,727.43 : x
  2. Step 2: Convert to fraction form
    139,390.19/192,357.96 = 75,727.43/x
  3. Step 3: Cross multiply
    139,390.19x = 192,357.96 × 75,727.43
  4. Step 4: Simplify right side
    139,390.19x = 14,566,773,950.84
  5. Step 5: Solve for x
    x = 14,566,773,950.84/139,390.19
  6. Step 6: Final answer
    x = 104,503.58

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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.