Home / 131,910.31-197,871-38,416.06

Finding the Fourth Proportional to 131,910.31, 197,871 and 38,416.06

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Solution

The fourth proportional to 131,910.31, 197,871 and 38,416.06 is: 57,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,910.31 : 197,871 = 38,416.06 : x
  2. Step 2: Convert to fraction form
    131,910.31/197,871 = 38,416.06/x
  3. Step 3: Cross multiply
    131,910.31x = 197,871 × 38,416.06
  4. Step 4: Simplify right side
    131,910.31x = 7,601,424,208.26
  5. Step 5: Solve for x
    x = 7,601,424,208.26/131,910.31
  6. Step 6: Final answer
    x = 57,625.70

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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.