Home / 122,650.32-169,272-68,937.60

Finding the Fourth Proportional to 122,650.32, 169,272 and 68,937.60

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Solution

The fourth proportional to 122,650.32, 169,272 and 68,937.60 is: 95,142.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,650.32 : 169,272 = 68,937.60 : x
  2. Step 2: Convert to fraction form
    122,650.32/169,272 = 68,937.60/x
  3. Step 3: Cross multiply
    122,650.32x = 169,272 × 68,937.60
  4. Step 4: Simplify right side
    122,650.32x = 11,669,205,427.20
  5. Step 5: Solve for x
    x = 11,669,205,427.20/122,650.32
  6. Step 6: Final answer
    x = 95,142.07

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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.