Home / 131,159.72-196,750.38-42,427.46

Finding the Fourth Proportional to 131,159.72, 196,750.38 and 42,427.46

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Solution

The fourth proportional to 131,159.72, 196,750.38 and 42,427.46 is: 63,644.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,159.72 : 196,750.38 = 42,427.46 : x
  2. Step 2: Convert to fraction form
    131,159.72/196,750.38 = 42,427.46/x
  3. Step 3: Cross multiply
    131,159.72x = 196,750.38 × 42,427.46
  4. Step 4: Simplify right side
    131,159.72x = 8,347,618,877.43
  5. Step 5: Solve for x
    x = 8,347,618,877.43/131,159.72
  6. Step 6: Final answer
    x = 63,644.68

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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.