Home / 119,213.06-164,586.26-78,961.32

Finding the Fourth Proportional to 119,213.06, 164,586.26 and 78,961.32

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Solution

The fourth proportional to 119,213.06, 164,586.26 and 78,961.32 is: 109,014.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,213.06 : 164,586.26 = 78,961.32 : x
  2. Step 2: Convert to fraction form
    119,213.06/164,586.26 = 78,961.32/x
  3. Step 3: Cross multiply
    119,213.06x = 164,586.26 × 78,961.32
  4. Step 4: Simplify right side
    119,213.06x = 12,995,948,540.87
  5. Step 5: Solve for x
    x = 12,995,948,540.87/119,213.06
  6. Step 6: Final answer
    x = 109,014.47

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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.