Home / 131,398.61-197,160.35-68,185.13

Finding the Fourth Proportional to 131,398.61, 197,160.35 and 68,185.13

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Solution

The fourth proportional to 131,398.61, 197,160.35 and 68,185.13 is: 102,310.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,398.61 : 197,160.35 = 68,185.13 : x
  2. Step 2: Convert to fraction form
    131,398.61/197,160.35 = 68,185.13/x
  3. Step 3: Cross multiply
    131,398.61x = 197,160.35 × 68,185.13
  4. Step 4: Simplify right side
    131,398.61x = 13,443,402,768.87
  5. Step 5: Solve for x
    x = 13,443,402,768.87/131,398.61
  6. Step 6: Final answer
    x = 102,310.09

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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.