Home / 131,216.80-196,922.40-52,387.60

Finding the Fourth Proportional to 131,216.80, 196,922.40 and 52,387.60

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Solution

The fourth proportional to 131,216.80, 196,922.40 and 52,387.60 is: 78,620.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,216.80 : 196,922.40 = 52,387.60 : x
  2. Step 2: Convert to fraction form
    131,216.80/196,922.40 = 52,387.60/x
  3. Step 3: Cross multiply
    131,216.80x = 196,922.40 × 52,387.60
  4. Step 4: Simplify right side
    131,216.80x = 10,316,291,922.24
  5. Step 5: Solve for x
    x = 10,316,291,922.24/131,216.80
  6. Step 6: Final answer
    x = 78,620.21

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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.