Home / 122,741.06-169,367.78-68,280.36

Finding the Fourth Proportional to 122,741.06, 169,367.78 and 68,280.36

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Solution

The fourth proportional to 122,741.06, 169,367.78 and 68,280.36 is: 94,218.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,741.06 : 169,367.78 = 68,280.36 : x
  2. Step 2: Convert to fraction form
    122,741.06/169,367.78 = 68,280.36/x
  3. Step 3: Cross multiply
    122,741.06x = 169,367.78 × 68,280.36
  4. Step 4: Simplify right side
    122,741.06x = 11,564,492,014.27
  5. Step 5: Solve for x
    x = 11,564,492,014.27/122,741.06
  6. Step 6: Final answer
    x = 94,218.61

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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.