Home / 141,187.42-194,856.20-80,749.68

Finding the Fourth Proportional to 141,187.42, 194,856.20 and 80,749.68

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Solution

The fourth proportional to 141,187.42, 194,856.20 and 80,749.68 is: 111,444.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,187.42 : 194,856.20 = 80,749.68 : x
  2. Step 2: Convert to fraction form
    141,187.42/194,856.20 = 80,749.68/x
  3. Step 3: Cross multiply
    141,187.42x = 194,856.20 × 80,749.68
  4. Step 4: Simplify right side
    141,187.42x = 15,734,574,417.99
  5. Step 5: Solve for x
    x = 15,734,574,417.99/141,187.42
  6. Step 6: Final answer
    x = 111,444.59

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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.