Home / 151,536.82-209,166.70-87,890.26

Finding the Fourth Proportional to 151,536.82, 209,166.70 and 87,890.26

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Solution

The fourth proportional to 151,536.82, 209,166.70 and 87,890.26 is: 121,315.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,536.82 : 209,166.70 = 87,890.26 : x
  2. Step 2: Convert to fraction form
    151,536.82/209,166.70 = 87,890.26/x
  3. Step 3: Cross multiply
    151,536.82x = 209,166.70 × 87,890.26
  4. Step 4: Simplify right side
    151,536.82x = 18,383,715,646.34
  5. Step 5: Solve for x
    x = 18,383,715,646.34/151,536.82
  6. Step 6: Final answer
    x = 121,315.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.