Home / 165,722.10-248,583.15-72,410.10

Finding the Fourth Proportional to 165,722.10, 248,583.15 and 72,410.10

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Solution

The fourth proportional to 165,722.10, 248,583.15 and 72,410.10 is: 108,615.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,722.10 : 248,583.15 = 72,410.10 : x
  2. Step 2: Convert to fraction form
    165,722.10/248,583.15 = 72,410.10/x
  3. Step 3: Cross multiply
    165,722.10x = 248,583.15 × 72,410.10
  4. Step 4: Simplify right side
    165,722.10x = 17,999,930,749.82
  5. Step 5: Solve for x
    x = 17,999,930,749.82/165,722.10
  6. Step 6: Final answer
    x = 108,615.15

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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.