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Finding the Fourth Proportional to 150,671.19, 207,912.49 and 89,406.82

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Solution

The fourth proportional to 150,671.19, 207,912.49 and 89,406.82 is: 123,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,671.19 : 207,912.49 = 89,406.82 : x
  2. Step 2: Convert to fraction form
    150,671.19/207,912.49 = 89,406.82/x
  3. Step 3: Cross multiply
    150,671.19x = 207,912.49 × 89,406.82
  4. Step 4: Simplify right side
    150,671.19x = 18,588,794,569.18
  5. Step 5: Solve for x
    x = 18,588,794,569.18/150,671.19
  6. Step 6: Final answer
    x = 123,373.25

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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.