Home / 122,110.20-183,165.30-77,932.80

Finding the Fourth Proportional to 122,110.20, 183,165.30 and 77,932.80

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Solution

The fourth proportional to 122,110.20, 183,165.30 and 77,932.80 is: 116,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,110.20 : 183,165.30 = 77,932.80 : x
  2. Step 2: Convert to fraction form
    122,110.20/183,165.30 = 77,932.80/x
  3. Step 3: Cross multiply
    122,110.20x = 183,165.30 × 77,932.80
  4. Step 4: Simplify right side
    122,110.20x = 14,274,584,691.84
  5. Step 5: Solve for x
    x = 14,274,584,691.84/122,110.20
  6. Step 6: Final answer
    x = 116,899.20

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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.