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Finding the Fourth Proportional to 117,487.44, 162,218 and 72,227.08

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Solution

The fourth proportional to 117,487.44, 162,218 and 72,227.08 is: 99,725.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,487.44 : 162,218 = 72,227.08 : x
  2. Step 2: Convert to fraction form
    117,487.44/162,218 = 72,227.08/x
  3. Step 3: Cross multiply
    117,487.44x = 162,218 × 72,227.08
  4. Step 4: Simplify right side
    117,487.44x = 11,716,532,463.44
  5. Step 5: Solve for x
    x = 11,716,532,463.44/117,487.44
  6. Step 6: Final answer
    x = 99,725.83

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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.