Home / 131,811.76-181,914.96-75,232.72

Finding the Fourth Proportional to 131,811.76, 181,914.96 and 75,232.72

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Solution

The fourth proportional to 131,811.76, 181,914.96 and 75,232.72 is: 103,829.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,811.76 : 181,914.96 = 75,232.72 : x
  2. Step 2: Convert to fraction form
    131,811.76/181,914.96 = 75,232.72/x
  3. Step 3: Cross multiply
    131,811.76x = 181,914.96 × 75,232.72
  4. Step 4: Simplify right side
    131,811.76x = 13,685,957,249.49
  5. Step 5: Solve for x
    x = 13,685,957,249.49/131,811.76
  6. Step 6: Final answer
    x = 103,829.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.