Home / 165,738.20-248,693.70-72,253.40

Finding the Fourth Proportional to 165,738.20, 248,693.70 and 72,253.40

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Solution

The fourth proportional to 165,738.20, 248,693.70 and 72,253.40 is: 108,417.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,738.20 : 248,693.70 = 72,253.40 : x
  2. Step 2: Convert to fraction form
    165,738.20/248,693.70 = 72,253.40/x
  3. Step 3: Cross multiply
    165,738.20x = 248,693.70 × 72,253.40
  4. Step 4: Simplify right side
    165,738.20x = 17,968,965,383.58
  5. Step 5: Solve for x
    x = 17,968,965,383.58/165,738.20
  6. Step 6: Final answer
    x = 108,417.77

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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.