Home / 151,755.53-209,421.43-83,772.48

Finding the Fourth Proportional to 151,755.53, 209,421.43 and 83,772.48

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Solution

The fourth proportional to 151,755.53, 209,421.43 and 83,772.48 is: 115,605.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,755.53 : 209,421.43 = 83,772.48 : x
  2. Step 2: Convert to fraction form
    151,755.53/209,421.43 = 83,772.48/x
  3. Step 3: Cross multiply
    151,755.53x = 209,421.43 × 83,772.48
  4. Step 4: Simplify right side
    151,755.53x = 17,543,752,425.37
  5. Step 5: Solve for x
    x = 17,543,752,425.37/151,755.53
  6. Step 6: Final answer
    x = 115,605.36

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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.