Home / 126,381.76-189,437.92-95,120.32

Finding the Fourth Proportional to 126,381.76, 189,437.92 and 95,120.32

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Solution

The fourth proportional to 126,381.76, 189,437.92 and 95,120.32 is: 142,579.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,381.76 : 189,437.92 = 95,120.32 : x
  2. Step 2: Convert to fraction form
    126,381.76/189,437.92 = 95,120.32/x
  3. Step 3: Cross multiply
    126,381.76x = 189,437.92 × 95,120.32
  4. Step 4: Simplify right side
    126,381.76x = 18,019,395,570.53
  5. Step 5: Solve for x
    x = 18,019,395,570.53/126,381.76
  6. Step 6: Final answer
    x = 142,579.08

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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.