Home / 165,887.70-248,905.05-86,983.17

Finding the Fourth Proportional to 165,887.70, 248,905.05 and 86,983.17

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Solution

The fourth proportional to 165,887.70, 248,905.05 and 86,983.17 is: 130,513.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,887.70 : 248,905.05 = 86,983.17 : x
  2. Step 2: Convert to fraction form
    165,887.70/248,905.05 = 86,983.17/x
  3. Step 3: Cross multiply
    165,887.70x = 248,905.05 × 86,983.17
  4. Step 4: Simplify right side
    165,887.70x = 21,650,550,278.01
  5. Step 5: Solve for x
    x = 21,650,550,278.01/165,887.70
  6. Step 6: Final answer
    x = 130,513.29

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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.