Home / 113,491.08-169,821.90-66,765.96

Finding the Fourth Proportional to 113,491.08, 169,821.90 and 66,765.96

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Solution

The fourth proportional to 113,491.08, 169,821.90 and 66,765.96 is: 99,904.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,491.08 : 169,821.90 = 66,765.96 : x
  2. Step 2: Convert to fraction form
    113,491.08/169,821.90 = 66,765.96/x
  3. Step 3: Cross multiply
    113,491.08x = 169,821.90 × 66,765.96
  4. Step 4: Simplify right side
    113,491.08x = 11,338,322,182.52
  5. Step 5: Solve for x
    x = 11,338,322,182.52/113,491.08
  6. Step 6: Final answer
    x = 99,904.96

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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.