Home / 131,001.41-196,751.40-81,427.93

Finding the Fourth Proportional to 131,001.41, 196,751.40 and 81,427.93

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Solution

The fourth proportional to 131,001.41, 196,751.40 and 81,427.93 is: 122,296.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,001.41 : 196,751.40 = 81,427.93 : x
  2. Step 2: Convert to fraction form
    131,001.41/196,751.40 = 81,427.93/x
  3. Step 3: Cross multiply
    131,001.41x = 196,751.40 × 81,427.93
  4. Step 4: Simplify right side
    131,001.41x = 16,021,060,223.14
  5. Step 5: Solve for x
    x = 16,021,060,223.14/131,001.41
  6. Step 6: Final answer
    x = 122,296.85

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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.