Home / 106,276.40-159,239.62-74,258.72

Finding the Fourth Proportional to 106,276.40, 159,239.62 and 74,258.72

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Solution

The fourth proportional to 106,276.40, 159,239.62 and 74,258.72 is: 111,265.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,276.40 : 159,239.62 = 74,258.72 : x
  2. Step 2: Convert to fraction form
    106,276.40/159,239.62 = 74,258.72/x
  3. Step 3: Cross multiply
    106,276.40x = 159,239.62 × 74,258.72
  4. Step 4: Simplify right side
    106,276.40x = 11,824,930,354.49
  5. Step 5: Solve for x
    x = 11,824,930,354.49/106,276.40
  6. Step 6: Final answer
    x = 111,265.82

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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.