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Finding the Fourth Proportional to 150,744.84, 207,968.66 and 90,318.02

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Solution

The fourth proportional to 150,744.84, 207,968.66 and 90,318.02 is: 124,603.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,744.84 : 207,968.66 = 90,318.02 : x
  2. Step 2: Convert to fraction form
    150,744.84/207,968.66 = 90,318.02/x
  3. Step 3: Cross multiply
    150,744.84x = 207,968.66 × 90,318.02
  4. Step 4: Simplify right side
    150,744.84x = 18,783,317,593.25
  5. Step 5: Solve for x
    x = 18,783,317,593.25/150,744.84
  6. Step 6: Final answer
    x = 124,603.39

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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.