Home / 131,168.19-196,758.44-42,428.61

Finding the Fourth Proportional to 131,168.19, 196,758.44 and 42,428.61

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Solution

The fourth proportional to 131,168.19, 196,758.44 and 42,428.61 is: 63,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,168.19 : 196,758.44 = 42,428.61 : x
  2. Step 2: Convert to fraction form
    131,168.19/196,758.44 = 42,428.61/x
  3. Step 3: Cross multiply
    131,168.19x = 196,758.44 × 42,428.61
  4. Step 4: Simplify right side
    131,168.19x = 8,348,186,902.83
  5. Step 5: Solve for x
    x = 8,348,186,902.83/131,168.19
  6. Step 6: Final answer
    x = 63,644.90

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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.