Home / 122,035.28-168,389.31-68,322.56

Finding the Fourth Proportional to 122,035.28, 168,389.31 and 68,322.56

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Solution

The fourth proportional to 122,035.28, 168,389.31 and 68,322.56 is: 94,274.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,035.28 : 168,389.31 = 68,322.56 : x
  2. Step 2: Convert to fraction form
    122,035.28/168,389.31 = 68,322.56/x
  3. Step 3: Cross multiply
    122,035.28x = 168,389.31 × 68,322.56
  4. Step 4: Simplify right side
    122,035.28x = 11,504,788,735.83
  5. Step 5: Solve for x
    x = 11,504,788,735.83/122,035.28
  6. Step 6: Final answer
    x = 94,274.28

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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.