Home / 204,970.90-307,456.35-72,001.30

Finding the Fourth Proportional to 204,970.90, 307,456.35 and 72,001.30

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Solution

The fourth proportional to 204,970.90, 307,456.35 and 72,001.30 is: 108,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,970.90 : 307,456.35 = 72,001.30 : x
  2. Step 2: Convert to fraction form
    204,970.90/307,456.35 = 72,001.30/x
  3. Step 3: Cross multiply
    204,970.90x = 307,456.35 × 72,001.30
  4. Step 4: Simplify right side
    204,970.90x = 22,137,256,893.26
  5. Step 5: Solve for x
    x = 22,137,256,893.26/204,970.90
  6. Step 6: Final answer
    x = 108,001.95

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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.