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Finding the Fourth Proportional to 150,499.75, 207,722.06 and 90,083.88

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Solution

The fourth proportional to 150,499.75, 207,722.06 and 90,083.88 is: 124,335.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,499.75 : 207,722.06 = 90,083.88 : x
  2. Step 2: Convert to fraction form
    150,499.75/207,722.06 = 90,083.88/x
  3. Step 3: Cross multiply
    150,499.75x = 207,722.06 × 90,083.88
  4. Step 4: Simplify right side
    150,499.75x = 18,712,409,126.39
  5. Step 5: Solve for x
    x = 18,712,409,126.39/150,499.75
  6. Step 6: Final answer
    x = 124,335.15

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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.