Home / 165,786.45-248,753.18-86,881.92

Finding the Fourth Proportional to 165,786.45, 248,753.18 and 86,881.92

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Solution

The fourth proportional to 165,786.45, 248,753.18 and 86,881.92 is: 130,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,786.45 : 248,753.18 = 86,881.92 : x
  2. Step 2: Convert to fraction form
    165,786.45/248,753.18 = 86,881.92/x
  3. Step 3: Cross multiply
    165,786.45x = 248,753.18 × 86,881.92
  4. Step 4: Simplify right side
    165,786.45x = 21,612,153,884.51
  5. Step 5: Solve for x
    x = 21,612,153,884.51/165,786.45
  6. Step 6: Final answer
    x = 130,361.40

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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.