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Finding the Fourth Proportional to 150,591.39, 207,822.69 and 90,150.39

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Solution

The fourth proportional to 150,591.39, 207,822.69 and 90,150.39 is: 124,411.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,591.39 : 207,822.69 = 90,150.39 : x
  2. Step 2: Convert to fraction form
    150,591.39/207,822.69 = 90,150.39/x
  3. Step 3: Cross multiply
    150,591.39x = 207,822.69 × 90,150.39
  4. Step 4: Simplify right side
    150,591.39x = 18,735,296,554.35
  5. Step 5: Solve for x
    x = 18,735,296,554.35/150,591.39
  6. Step 6: Final answer
    x = 124,411.47

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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.