Home / 122,717.32-169,345.90-68,269.22

Finding the Fourth Proportional to 122,717.32, 169,345.90 and 68,269.22

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Solution

The fourth proportional to 122,717.32, 169,345.90 and 68,269.22 is: 94,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,717.32 : 169,345.90 = 68,269.22 : x
  2. Step 2: Convert to fraction form
    122,717.32/169,345.90 = 68,269.22/x
  3. Step 3: Cross multiply
    122,717.32x = 169,345.90 × 68,269.22
  4. Step 4: Simplify right side
    122,717.32x = 11,561,112,234.71
  5. Step 5: Solve for x
    x = 11,561,112,234.71/122,717.32
  6. Step 6: Final answer
    x = 94,209.30

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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.