Home / 131,400.90-197,132.67-42,654.60

Finding the Fourth Proportional to 131,400.90, 197,132.67 and 42,654.60

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Solution

The fourth proportional to 131,400.90, 197,132.67 and 42,654.60 is: 63,992.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,400.90 : 197,132.67 = 42,654.60 : x
  2. Step 2: Convert to fraction form
    131,400.90/197,132.67 = 42,654.60/x
  3. Step 3: Cross multiply
    131,400.90x = 197,132.67 × 42,654.60
  4. Step 4: Simplify right side
    131,400.90x = 8,408,615,185.78
  5. Step 5: Solve for x
    x = 8,408,615,185.78/131,400.90
  6. Step 6: Final answer
    x = 63,992.07

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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.