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Finding the Fourth Proportional to 150,398.76, 207,550.28 and 89,971.94

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Solution

The fourth proportional to 150,398.76, 207,550.28 and 89,971.94 is: 124,161.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,398.76 : 207,550.28 = 89,971.94 : x
  2. Step 2: Convert to fraction form
    150,398.76/207,550.28 = 89,971.94/x
  3. Step 3: Cross multiply
    150,398.76x = 207,550.28 × 89,971.94
  4. Step 4: Simplify right side
    150,398.76x = 18,673,701,339.14
  5. Step 5: Solve for x
    x = 18,673,701,339.14/150,398.76
  6. Step 6: Final answer
    x = 124,161.27

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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.