Home / 131,640.30-197,460.45-52,811.10

Finding the Fourth Proportional to 131,640.30, 197,460.45 and 52,811.10

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Solution

The fourth proportional to 131,640.30, 197,460.45 and 52,811.10 is: 79,216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,640.30 : 197,460.45 = 52,811.10 : x
  2. Step 2: Convert to fraction form
    131,640.30/197,460.45 = 52,811.10/x
  3. Step 3: Cross multiply
    131,640.30x = 197,460.45 × 52,811.10
  4. Step 4: Simplify right side
    131,640.30x = 10,428,103,571.00
  5. Step 5: Solve for x
    x = 10,428,103,571.00/131,640.30
  6. Step 6: Final answer
    x = 79,216.65

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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.