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Finding the Fourth Proportional to 150,512.88, 207,740.18 and 90,097

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Solution

The fourth proportional to 150,512.88, 207,740.18 and 90,097 is: 124,353.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,512.88 : 207,740.18 = 90,097 : x
  2. Step 2: Convert to fraction form
    150,512.88/207,740.18 = 90,097/x
  3. Step 3: Cross multiply
    150,512.88x = 207,740.18 × 90,097
  4. Step 4: Simplify right side
    150,512.88x = 18,716,766,997.46
  5. Step 5: Solve for x
    x = 18,716,766,997.46/150,512.88
  6. Step 6: Final answer
    x = 124,353.26

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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.