Home / 187,051.45-280,688.97-68,734.75

Finding the Fourth Proportional to 187,051.45, 280,688.97 and 68,734.75

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Solution

The fourth proportional to 187,051.45, 280,688.97 and 68,734.75 is: 103,143.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,051.45 : 280,688.97 = 68,734.75 : x
  2. Step 2: Convert to fraction form
    187,051.45/280,688.97 = 68,734.75/x
  3. Step 3: Cross multiply
    187,051.45x = 280,688.97 × 68,734.75
  4. Step 4: Simplify right side
    187,051.45x = 19,293,086,180.71
  5. Step 5: Solve for x
    x = 19,293,086,180.71/187,051.45
  6. Step 6: Final answer
    x = 103,143.21

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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.