Home / 151,897.07-209,616.96-83,918.43

Finding the Fourth Proportional to 151,897.07, 209,616.96 and 83,918.43

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Solution

The fourth proportional to 151,897.07, 209,616.96 and 83,918.43 is: 115,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,897.07 : 209,616.96 = 83,918.43 : x
  2. Step 2: Convert to fraction form
    151,897.07/209,616.96 = 83,918.43/x
  3. Step 3: Cross multiply
    151,897.07x = 209,616.96 × 83,918.43
  4. Step 4: Simplify right side
    151,897.07x = 17,590,726,499.27
  5. Step 5: Solve for x
    x = 17,590,726,499.27/151,897.07
  6. Step 6: Final answer
    x = 115,806.88

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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.