Home / 122,104.40-168,499.08-68,388.56

Finding the Fourth Proportional to 122,104.40, 168,499.08 and 68,388.56

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Solution

The fourth proportional to 122,104.40, 168,499.08 and 68,388.56 is: 94,373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,104.40 : 168,499.08 = 68,388.56 : x
  2. Step 2: Convert to fraction form
    122,104.40/168,499.08 = 68,388.56/x
  3. Step 3: Cross multiply
    122,104.40x = 168,499.08 × 68,388.56
  4. Step 4: Simplify right side
    122,104.40x = 11,523,409,442.52
  5. Step 5: Solve for x
    x = 11,523,409,442.52/122,104.40
  6. Step 6: Final answer
    x = 94,373.42

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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.