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Finding the Fourth Proportional to 117,792.89, 162,614.39 and 90,874.97

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Solution

The fourth proportional to 117,792.89, 162,614.39 and 90,874.97 is: 125,453.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,792.89 : 162,614.39 = 90,874.97 : x
  2. Step 2: Convert to fraction form
    117,792.89/162,614.39 = 90,874.97/x
  3. Step 3: Cross multiply
    117,792.89x = 162,614.39 × 90,874.97
  4. Step 4: Simplify right side
    117,792.89x = 14,777,578,836.64
  5. Step 5: Solve for x
    x = 14,777,578,836.64/117,792.89
  6. Step 6: Final answer
    x = 125,453.91

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1.5x scale

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.