Home / 122,100.24-168,497.10-68,385.36

Finding the Fourth Proportional to 122,100.24, 168,497.10 and 68,385.36

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Solution

The fourth proportional to 122,100.24, 168,497.10 and 68,385.36 is: 94,371.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,100.24 : 168,497.10 = 68,385.36 : x
  2. Step 2: Convert to fraction form
    122,100.24/168,497.10 = 68,385.36/x
  3. Step 3: Cross multiply
    122,100.24x = 168,497.10 × 68,385.36
  4. Step 4: Simplify right side
    122,100.24x = 11,522,734,842.46
  5. Step 5: Solve for x
    x = 11,522,734,842.46/122,100.24
  6. Step 6: Final answer
    x = 94,371.11

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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.