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Finding the Fourth Proportional to 150,674.60, 207,954.18 and 87,007.40

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Solution

The fourth proportional to 150,674.60, 207,954.18 and 87,007.40 is: 120,083.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,674.60 : 207,954.18 = 87,007.40 : x
  2. Step 2: Convert to fraction form
    150,674.60/207,954.18 = 87,007.40/x
  3. Step 3: Cross multiply
    150,674.60x = 207,954.18 × 87,007.40
  4. Step 4: Simplify right side
    150,674.60x = 18,093,552,520.93
  5. Step 5: Solve for x
    x = 18,093,552,520.93/150,674.60
  6. Step 6: Final answer
    x = 120,083.63

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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.