Home / 151,963.98-209,714.49-83,985.36

Finding the Fourth Proportional to 151,963.98, 209,714.49 and 83,985.36

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Solution

The fourth proportional to 151,963.98, 209,714.49 and 83,985.36 is: 115,902.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,963.98 : 209,714.49 = 83,985.36 : x
  2. Step 2: Convert to fraction form
    151,963.98/209,714.49 = 83,985.36/x
  3. Step 3: Cross multiply
    151,963.98x = 209,714.49 × 83,985.36
  4. Step 4: Simplify right side
    151,963.98x = 17,612,947,149.21
  5. Step 5: Solve for x
    x = 17,612,947,149.21/151,963.98
  6. Step 6: Final answer
    x = 115,902.12

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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.