Home / 140,375.04-193,717.64-76,712.84

Finding the Fourth Proportional to 140,375.04, 193,717.64 and 76,712.84

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Solution

The fourth proportional to 140,375.04, 193,717.64 and 76,712.84 is: 105,863.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,375.04 : 193,717.64 = 76,712.84 : x
  2. Step 2: Convert to fraction form
    140,375.04/193,717.64 = 76,712.84/x
  3. Step 3: Cross multiply
    140,375.04x = 193,717.64 × 76,712.84
  4. Step 4: Simplify right side
    140,375.04x = 14,860,630,514.28
  5. Step 5: Solve for x
    x = 14,860,630,514.28/140,375.04
  6. Step 6: Final answer
    x = 105,863.77

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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.