Home / 137,523.39-206,522.91-81,714.18

Finding the Fourth Proportional to 137,523.39, 206,522.91 and 81,714.18

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Solution

The fourth proportional to 137,523.39, 206,522.91 and 81,714.18 is: 122,712.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,523.39 : 206,522.91 = 81,714.18 : x
  2. Step 2: Convert to fraction form
    137,523.39/206,522.91 = 81,714.18/x
  3. Step 3: Cross multiply
    137,523.39x = 206,522.91 × 81,714.18
  4. Step 4: Simplify right side
    137,523.39x = 16,875,850,241.86
  5. Step 5: Solve for x
    x = 16,875,850,241.86/137,523.39
  6. Step 6: Final answer
    x = 122,712.58

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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.