Home / 131,241.60-196,732.80-64,627.20

Finding the Fourth Proportional to 131,241.60, 196,732.80 and 64,627.20

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Solution

The fourth proportional to 131,241.60, 196,732.80 and 64,627.20 is: 96,876.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,241.60 : 196,732.80 = 64,627.20 : x
  2. Step 2: Convert to fraction form
    131,241.60/196,732.80 = 64,627.20/x
  3. Step 3: Cross multiply
    131,241.60x = 196,732.80 × 64,627.20
  4. Step 4: Simplify right side
    131,241.60x = 12,714,290,012.16
  5. Step 5: Solve for x
    x = 12,714,290,012.16/131,241.60
  6. Step 6: Final answer
    x = 96,876.98

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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.