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Finding the Fourth Proportional to 122,701.52, 169,284.04 and 80,284.68

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Solution

The fourth proportional to 122,701.52, 169,284.04 and 80,284.68 is: 110,764.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,701.52 : 169,284.04 = 80,284.68 : x
  2. Step 2: Convert to fraction form
    122,701.52/169,284.04 = 80,284.68/x
  3. Step 3: Cross multiply
    122,701.52x = 169,284.04 × 80,284.68
  4. Step 4: Simplify right side
    122,701.52x = 13,590,914,980.51
  5. Step 5: Solve for x
    x = 13,590,914,980.51/122,701.52
  6. Step 6: Final answer
    x = 110,764.03

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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.