Home / 185,986.96-278,975.28-67,660.48

Finding the Fourth Proportional to 185,986.96, 278,975.28 and 67,660.48

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Solution

The fourth proportional to 185,986.96, 278,975.28 and 67,660.48 is: 101,488.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,986.96 : 278,975.28 = 67,660.48 : x
  2. Step 2: Convert to fraction form
    185,986.96/278,975.28 = 67,660.48/x
  3. Step 3: Cross multiply
    185,986.96x = 278,975.28 × 67,660.48
  4. Step 4: Simplify right side
    185,986.96x = 18,875,601,352.93
  5. Step 5: Solve for x
    x = 18,875,601,352.93/185,986.96
  6. Step 6: Final answer
    x = 101,488.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.