Home / 165,877.70-248,890.05-86,973.17

Finding the Fourth Proportional to 165,877.70, 248,890.05 and 86,973.17

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Solution

The fourth proportional to 165,877.70, 248,890.05 and 86,973.17 is: 130,498.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,877.70 : 248,890.05 = 86,973.17 : x
  2. Step 2: Convert to fraction form
    165,877.70/248,890.05 = 86,973.17/x
  3. Step 3: Cross multiply
    165,877.70x = 248,890.05 × 86,973.17
  4. Step 4: Simplify right side
    165,877.70x = 21,646,755,385.51
  5. Step 5: Solve for x
    x = 21,646,755,385.51/165,877.70
  6. Step 6: Final answer
    x = 130,498.29

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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.