Home / 139,957.11-193,145.04-76,295.97

Finding the Fourth Proportional to 139,957.11, 193,145.04 and 76,295.97

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Solution

The fourth proportional to 139,957.11, 193,145.04 and 76,295.97 is: 105,290.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,957.11 : 193,145.04 = 76,295.97 : x
  2. Step 2: Convert to fraction form
    139,957.11/193,145.04 = 76,295.97/x
  3. Step 3: Cross multiply
    139,957.11x = 193,145.04 × 76,295.97
  4. Step 4: Simplify right side
    139,957.11x = 14,736,188,177.49
  5. Step 5: Solve for x
    x = 14,736,188,177.49/139,957.11
  6. Step 6: Final answer
    x = 105,290.74

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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.