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Finding the Fourth Proportional to 161,994.87, 223,552.31 and 90,374.94

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Solution

The fourth proportional to 161,994.87, 223,552.31 and 90,374.94 is: 124,717.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,994.87 : 223,552.31 = 90,374.94 : x
  2. Step 2: Convert to fraction form
    161,994.87/223,552.31 = 90,374.94/x
  3. Step 3: Cross multiply
    161,994.87x = 223,552.31 × 90,374.94
  4. Step 4: Simplify right side
    161,994.87x = 20,203,526,151.24
  5. Step 5: Solve for x
    x = 20,203,526,151.24/161,994.87
  6. Step 6: Final answer
    x = 124,717.07

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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.