Home / 131,646.48-197,481.72-42,877.20

Finding the Fourth Proportional to 131,646.48, 197,481.72 and 42,877.20

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Solution

The fourth proportional to 131,646.48, 197,481.72 and 42,877.20 is: 64,319.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,646.48 : 197,481.72 = 42,877.20 : x
  2. Step 2: Convert to fraction form
    131,646.48/197,481.72 = 42,877.20/x
  3. Step 3: Cross multiply
    131,646.48x = 197,481.72 × 42,877.20
  4. Step 4: Simplify right side
    131,646.48x = 8,467,463,204.78
  5. Step 5: Solve for x
    x = 8,467,463,204.78/131,646.48
  6. Step 6: Final answer
    x = 64,319.71

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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.