Home / 119,728.71-165,226.77-66,015.86

Finding the Fourth Proportional to 119,728.71, 165,226.77 and 66,015.86

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Solution

The fourth proportional to 119,728.71, 165,226.77 and 66,015.86 is: 91,102.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,728.71 : 165,226.77 = 66,015.86 : x
  2. Step 2: Convert to fraction form
    119,728.71/165,226.77 = 66,015.86/x
  3. Step 3: Cross multiply
    119,728.71x = 165,226.77 × 66,015.86
  4. Step 4: Simplify right side
    119,728.71x = 10,907,586,490.44
  5. Step 5: Solve for x
    x = 10,907,586,490.44/119,728.71
  6. Step 6: Final answer
    x = 91,102.51

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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.