Home / 141,712.31-195,562.48-78,049.96

Finding the Fourth Proportional to 141,712.31, 195,562.48 and 78,049.96

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Solution

The fourth proportional to 141,712.31, 195,562.48 and 78,049.96 is: 107,708.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,712.31 : 195,562.48 = 78,049.96 : x
  2. Step 2: Convert to fraction form
    141,712.31/195,562.48 = 78,049.96/x
  3. Step 3: Cross multiply
    141,712.31x = 195,562.48 × 78,049.96
  4. Step 4: Simplify right side
    141,712.31x = 15,263,643,741.50
  5. Step 5: Solve for x
    x = 15,263,643,741.50/141,712.31
  6. Step 6: Final answer
    x = 107,708.67

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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.