Home / 122,988.32-169,736.64-75,273.44

Finding the Fourth Proportional to 122,988.32, 169,736.64 and 75,273.44

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Solution

The fourth proportional to 122,988.32, 169,736.64 and 75,273.44 is: 103,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,988.32 : 169,736.64 = 75,273.44 : x
  2. Step 2: Convert to fraction form
    122,988.32/169,736.64 = 75,273.44/x
  3. Step 3: Cross multiply
    122,988.32x = 169,736.64 × 75,273.44
  4. Step 4: Simplify right side
    122,988.32x = 12,776,660,786.84
  5. Step 5: Solve for x
    x = 12,776,660,786.84/122,988.32
  6. Step 6: Final answer
    x = 103,885.16

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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.