Home / 109,956.28-164,967.24-77,996.92

Finding the Fourth Proportional to 109,956.28, 164,967.24 and 77,996.92

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Solution

The fourth proportional to 109,956.28, 164,967.24 and 77,996.92 is: 117,018.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,956.28 : 164,967.24 = 77,996.92 : x
  2. Step 2: Convert to fraction form
    109,956.28/164,967.24 = 77,996.92/x
  3. Step 3: Cross multiply
    109,956.28x = 164,967.24 × 77,996.92
  4. Step 4: Simplify right side
    109,956.28x = 12,866,936,620.90
  5. Step 5: Solve for x
    x = 12,866,936,620.90/109,956.28
  6. Step 6: Final answer
    x = 117,018.66

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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.