Home / 109,971.79-165,781.77-102,648.04

Finding the Fourth Proportional to 109,971.79, 165,781.77 and 102,648.04

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Solution

The fourth proportional to 109,971.79, 165,781.77 and 102,648.04 is: 154,741.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,971.79 : 165,781.77 = 102,648.04 : x
  2. Step 2: Convert to fraction form
    109,971.79/165,781.77 = 102,648.04/x
  3. Step 3: Cross multiply
    109,971.79x = 165,781.77 × 102,648.04
  4. Step 4: Simplify right side
    109,971.79x = 17,017,173,758.23
  5. Step 5: Solve for x
    x = 17,017,173,758.23/109,971.79
  6. Step 6: Final answer
    x = 154,741.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.