Home / 131,439.60-197,029.80-64,825.20

Finding the Fourth Proportional to 131,439.60, 197,029.80 and 64,825.20

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Solution

The fourth proportional to 131,439.60, 197,029.80 and 64,825.20 is: 97,173.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,439.60 : 197,029.80 = 64,825.20 : x
  2. Step 2: Convert to fraction form
    131,439.60/197,029.80 = 64,825.20/x
  3. Step 3: Cross multiply
    131,439.60x = 197,029.80 × 64,825.20
  4. Step 4: Simplify right side
    131,439.60x = 12,772,496,190.96
  5. Step 5: Solve for x
    x = 12,772,496,190.96/131,439.60
  6. Step 6: Final answer
    x = 97,173.88

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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.