Home / 187,162.45-280,712.93-67,194.56

Finding the Fourth Proportional to 187,162.45, 280,712.93 and 67,194.56

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Solution

The fourth proportional to 187,162.45, 280,712.93 and 67,194.56 is: 100,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,162.45 : 280,712.93 = 67,194.56 : x
  2. Step 2: Convert to fraction form
    187,162.45/280,712.93 = 67,194.56/x
  3. Step 3: Cross multiply
    187,162.45x = 280,712.93 × 67,194.56
  4. Step 4: Simplify right side
    187,162.45x = 18,862,382,183.47
  5. Step 5: Solve for x
    x = 18,862,382,183.47/187,162.45
  6. Step 6: Final answer
    x = 100,780.81

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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.