Home / 131,159.20-196,738.80-56,266.60

Finding the Fourth Proportional to 131,159.20, 196,738.80 and 56,266.60

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Solution

The fourth proportional to 131,159.20, 196,738.80 and 56,266.60 is: 84,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,159.20 : 196,738.80 = 56,266.60 : x
  2. Step 2: Convert to fraction form
    131,159.20/196,738.80 = 56,266.60/x
  3. Step 3: Cross multiply
    131,159.20x = 196,738.80 × 56,266.60
  4. Step 4: Simplify right side
    131,159.20x = 11,069,823,364.08
  5. Step 5: Solve for x
    x = 11,069,823,364.08/131,159.20
  6. Step 6: Final answer
    x = 84,399.90

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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.