Home / 122,538.43-169,106.79-68,824.54

Finding the Fourth Proportional to 122,538.43, 169,106.79 and 68,824.54

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Solution

The fourth proportional to 122,538.43, 169,106.79 and 68,824.54 is: 94,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,538.43 : 169,106.79 = 68,824.54 : x
  2. Step 2: Convert to fraction form
    122,538.43/169,106.79 = 68,824.54/x
  3. Step 3: Cross multiply
    122,538.43x = 169,106.79 × 68,824.54
  4. Step 4: Simplify right side
    122,538.43x = 11,638,697,032.63
  5. Step 5: Solve for x
    x = 11,638,697,032.63/122,538.43
  6. Step 6: Final answer
    x = 94,979.98

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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.