Home / 131,716.80-197,672.40-52,887.60

Finding the Fourth Proportional to 131,716.80, 197,672.40 and 52,887.60

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Solution

The fourth proportional to 131,716.80, 197,672.40 and 52,887.60 is: 79,370.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,716.80 : 197,672.40 = 52,887.60 : x
  2. Step 2: Convert to fraction form
    131,716.80/197,672.40 = 52,887.60/x
  3. Step 3: Cross multiply
    131,716.80x = 197,672.40 × 52,887.60
  4. Step 4: Simplify right side
    131,716.80x = 10,454,418,822.24
  5. Step 5: Solve for x
    x = 10,454,418,822.24/131,716.80
  6. Step 6: Final answer
    x = 79,370.43

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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.