Home / 157,182.62-235,776.39-87,504.78

Finding the Fourth Proportional to 157,182.62, 235,776.39 and 87,504.78

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Solution

The fourth proportional to 157,182.62, 235,776.39 and 87,504.78 is: 131,258.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,182.62 : 235,776.39 = 87,504.78 : x
  2. Step 2: Convert to fraction form
    157,182.62/235,776.39 = 87,504.78/x
  3. Step 3: Cross multiply
    157,182.62x = 235,776.39 × 87,504.78
  4. Step 4: Simplify right side
    157,182.62x = 20,631,561,136.14
  5. Step 5: Solve for x
    x = 20,631,561,136.14/157,182.62
  6. Step 6: Final answer
    x = 131,258.54

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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.