Home / 119,917.75-165,508.16-71,522.78

Finding the Fourth Proportional to 119,917.75, 165,508.16 and 71,522.78

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Solution

The fourth proportional to 119,917.75, 165,508.16 and 71,522.78 is: 98,714.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,917.75 : 165,508.16 = 71,522.78 : x
  2. Step 2: Convert to fraction form
    119,917.75/165,508.16 = 71,522.78/x
  3. Step 3: Cross multiply
    119,917.75x = 165,508.16 × 71,522.78
  4. Step 4: Simplify right side
    119,917.75x = 11,837,603,772.04
  5. Step 5: Solve for x
    x = 11,837,603,772.04/119,917.75
  6. Step 6: Final answer
    x = 98,714.36

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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.