Home / 165,442.17-248,206.99-86,535.21

Finding the Fourth Proportional to 165,442.17, 248,206.99 and 86,535.21

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Solution

The fourth proportional to 165,442.17, 248,206.99 and 86,535.21 is: 129,825.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,442.17 : 248,206.99 = 86,535.21 : x
  2. Step 2: Convert to fraction form
    165,442.17/248,206.99 = 86,535.21/x
  3. Step 3: Cross multiply
    165,442.17x = 248,206.99 × 86,535.21
  4. Step 4: Simplify right side
    165,442.17x = 21,478,644,003.12
  5. Step 5: Solve for x
    x = 21,478,644,003.12/165,442.17
  6. Step 6: Final answer
    x = 129,825.69

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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.