Home / 131,259.20-196,780.80-56,436.80

Finding the Fourth Proportional to 131,259.20, 196,780.80 and 56,436.80

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Solution

The fourth proportional to 131,259.20, 196,780.80 and 56,436.80 is: 84,608.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,259.20 : 196,780.80 = 56,436.80 : x
  2. Step 2: Convert to fraction form
    131,259.20/196,780.80 = 56,436.80/x
  3. Step 3: Cross multiply
    131,259.20x = 196,780.80 × 56,436.80
  4. Step 4: Simplify right side
    131,259.20x = 11,105,678,653.44
  5. Step 5: Solve for x
    x = 11,105,678,653.44/131,259.20
  6. Step 6: Final answer
    x = 84,608.76

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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.