Home / 109,714.96-164,178.78-92,131.48

Finding the Fourth Proportional to 109,714.96, 164,178.78 and 92,131.48

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Solution

The fourth proportional to 109,714.96, 164,178.78 and 92,131.48 is: 137,866.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,714.96 : 164,178.78 = 92,131.48 : x
  2. Step 2: Convert to fraction form
    109,714.96/164,178.78 = 92,131.48/x
  3. Step 3: Cross multiply
    109,714.96x = 164,178.78 × 92,131.48
  4. Step 4: Simplify right side
    109,714.96x = 15,126,033,985.99
  5. Step 5: Solve for x
    x = 15,126,033,985.99/109,714.96
  6. Step 6: Final answer
    x = 137,866.65

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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.