Home / 131,325.76-196,992.96-42,580

Finding the Fourth Proportional to 131,325.76, 196,992.96 and 42,580

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Solution

The fourth proportional to 131,325.76, 196,992.96 and 42,580 is: 63,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,325.76 : 196,992.96 = 42,580 : x
  2. Step 2: Convert to fraction form
    131,325.76/196,992.96 = 42,580/x
  3. Step 3: Cross multiply
    131,325.76x = 196,992.96 × 42,580
  4. Step 4: Simplify right side
    131,325.76x = 8,387,960,236.80
  5. Step 5: Solve for x
    x = 8,387,960,236.80/131,325.76
  6. Step 6: Final answer
    x = 63,871.40

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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.