Home / 165,828.35-248,718.22-81,565.90

Finding the Fourth Proportional to 165,828.35, 248,718.22 and 81,565.90

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Solution

The fourth proportional to 165,828.35, 248,718.22 and 81,565.90 is: 122,336.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,828.35 : 248,718.22 = 81,565.90 : x
  2. Step 2: Convert to fraction form
    165,828.35/248,718.22 = 81,565.90/x
  3. Step 3: Cross multiply
    165,828.35x = 248,718.22 × 81,565.90
  4. Step 4: Simplify right side
    165,828.35x = 20,286,924,217.11
  5. Step 5: Solve for x
    x = 20,286,924,217.11/165,828.35
  6. Step 6: Final answer
    x = 122,336.89

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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.