Home / 203,983.30-305,663.10-137,176.12

Finding the Fourth Proportional to 203,983.30, 305,663.10 and 137,176.12

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Solution

The fourth proportional to 203,983.30, 305,663.10 and 137,176.12 is: 205,554.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,983.30 : 305,663.10 = 137,176.12 : x
  2. Step 2: Convert to fraction form
    203,983.30/305,663.10 = 137,176.12/x
  3. Step 3: Cross multiply
    203,983.30x = 305,663.10 × 137,176.12
  4. Step 4: Simplify right side
    203,983.30x = 41,929,678,085.17
  5. Step 5: Solve for x
    x = 41,929,678,085.17/203,983.30
  6. Step 6: Final answer
    x = 205,554.46

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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.