Home / 157,177.61-235,768.86-87,499.79

Finding the Fourth Proportional to 157,177.61, 235,768.86 and 87,499.79

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Solution

The fourth proportional to 157,177.61, 235,768.86 and 87,499.79 is: 131,251.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,177.61 : 235,768.86 = 87,499.79 : x
  2. Step 2: Convert to fraction form
    157,177.61/235,768.86 = 87,499.79/x
  3. Step 3: Cross multiply
    157,177.61x = 235,768.86 × 87,499.79
  4. Step 4: Simplify right side
    157,177.61x = 20,629,725,738.54
  5. Step 5: Solve for x
    x = 20,629,725,738.54/157,177.61
  6. Step 6: Final answer
    x = 131,251.05

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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.