Home / 165,443.17-248,208.49-86,536.21

Finding the Fourth Proportional to 165,443.17, 248,208.49 and 86,536.21

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Solution

The fourth proportional to 165,443.17, 248,208.49 and 86,536.21 is: 129,827.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,443.17 : 248,208.49 = 86,536.21 : x
  2. Step 2: Convert to fraction form
    165,443.17/248,208.49 = 86,536.21/x
  3. Step 3: Cross multiply
    165,443.17x = 248,208.49 × 86,536.21
  4. Step 4: Simplify right side
    165,443.17x = 21,479,022,014.42
  5. Step 5: Solve for x
    x = 21,479,022,014.42/165,443.17
  6. Step 6: Final answer
    x = 129,827.19

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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.