Home / 131,911.56-197,872.88-38,417.31

Finding the Fourth Proportional to 131,911.56, 197,872.88 and 38,417.31

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Solution

The fourth proportional to 131,911.56, 197,872.88 and 38,417.31 is: 57,627.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,911.56 : 197,872.88 = 38,417.31 : x
  2. Step 2: Convert to fraction form
    131,911.56/197,872.88 = 38,417.31/x
  3. Step 3: Cross multiply
    131,911.56x = 197,872.88 × 38,417.31
  4. Step 4: Simplify right side
    131,911.56x = 7,601,743,579.47
  5. Step 5: Solve for x
    x = 7,601,743,579.47/131,911.56
  6. Step 6: Final answer
    x = 57,627.58

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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.