Home / 106,274.40-159,236.63-74,256.72

Finding the Fourth Proportional to 106,274.40, 159,236.63 and 74,256.72

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Solution

The fourth proportional to 106,274.40, 159,236.63 and 74,256.72 is: 111,262.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,274.40 : 159,236.63 = 74,256.72 : x
  2. Step 2: Convert to fraction form
    106,274.40/159,236.63 = 74,256.72/x
  3. Step 3: Cross multiply
    106,274.40x = 159,236.63 × 74,256.72
  4. Step 4: Simplify right side
    106,274.40x = 11,824,389,476.37
  5. Step 5: Solve for x
    x = 11,824,389,476.37/106,274.40
  6. Step 6: Final answer
    x = 111,262.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.