Home / 165,855.83-248,712.66-77,100.08

Finding the Fourth Proportional to 165,855.83, 248,712.66 and 77,100.08

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Solution

The fourth proportional to 165,855.83, 248,712.66 and 77,100.08 is: 115,617.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,855.83 : 248,712.66 = 77,100.08 : x
  2. Step 2: Convert to fraction form
    165,855.83/248,712.66 = 77,100.08/x
  3. Step 3: Cross multiply
    165,855.83x = 248,712.66 × 77,100.08
  4. Step 4: Simplify right side
    165,855.83x = 19,175,765,361.23
  5. Step 5: Solve for x
    x = 19,175,765,361.23/165,855.83
  6. Step 6: Final answer
    x = 115,617.07

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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.