Home / 113,226.54-169,847.10-66,381

Finding the Fourth Proportional to 113,226.54, 169,847.10 and 66,381

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Solution

The fourth proportional to 113,226.54, 169,847.10 and 66,381 is: 99,575.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,226.54 : 169,847.10 = 66,381 : x
  2. Step 2: Convert to fraction form
    113,226.54/169,847.10 = 66,381/x
  3. Step 3: Cross multiply
    113,226.54x = 169,847.10 × 66,381
  4. Step 4: Simplify right side
    113,226.54x = 11,274,620,345.10
  5. Step 5: Solve for x
    x = 11,274,620,345.10/113,226.54
  6. Step 6: Final answer
    x = 99,575.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.