Home / 131,727.84-197,608-42,957.60

Finding the Fourth Proportional to 131,727.84, 197,608 and 42,957.60

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Solution

The fourth proportional to 131,727.84, 197,608 and 42,957.60 is: 64,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,727.84 : 197,608 = 42,957.60 : x
  2. Step 2: Convert to fraction form
    131,727.84/197,608 = 42,957.60/x
  3. Step 3: Cross multiply
    131,727.84x = 197,608 × 42,957.60
  4. Step 4: Simplify right side
    131,727.84x = 8,488,765,420.80
  5. Step 5: Solve for x
    x = 8,488,765,420.80/131,727.84
  6. Step 6: Final answer
    x = 64,441.70

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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.