Home / 119,828.82-165,364.65-66,115.77

Finding the Fourth Proportional to 119,828.82, 165,364.65 and 66,115.77

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Solution

The fourth proportional to 119,828.82, 165,364.65 and 66,115.77 is: 91,240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,828.82 : 165,364.65 = 66,115.77 : x
  2. Step 2: Convert to fraction form
    119,828.82/165,364.65 = 66,115.77/x
  3. Step 3: Cross multiply
    119,828.82x = 165,364.65 × 66,115.77
  4. Step 4: Simplify right side
    119,828.82x = 10,933,211,165.53
  5. Step 5: Solve for x
    x = 10,933,211,165.53/119,828.82
  6. Step 6: Final answer
    x = 91,240.25

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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.