Home / 122,495.20-169,030.80-68,786.16

Finding the Fourth Proportional to 122,495.20, 169,030.80 and 68,786.16

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Solution

The fourth proportional to 122,495.20, 169,030.80 and 68,786.16 is: 94,917.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,495.20 : 169,030.80 = 68,786.16 : x
  2. Step 2: Convert to fraction form
    122,495.20/169,030.80 = 68,786.16/x
  3. Step 3: Cross multiply
    122,495.20x = 169,030.80 × 68,786.16
  4. Step 4: Simplify right side
    122,495.20x = 11,626,979,653.73
  5. Step 5: Solve for x
    x = 11,626,979,653.73/122,495.20
  6. Step 6: Final answer
    x = 94,917.84

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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.