Home / 141,711.56-195,561.44-78,049.21

Finding the Fourth Proportional to 141,711.56, 195,561.44 and 78,049.21

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Solution

The fourth proportional to 141,711.56, 195,561.44 and 78,049.21 is: 107,707.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,711.56 : 195,561.44 = 78,049.21 : x
  2. Step 2: Convert to fraction form
    141,711.56/195,561.44 = 78,049.21/x
  3. Step 3: Cross multiply
    141,711.56x = 195,561.44 × 78,049.21
  4. Step 4: Simplify right side
    141,711.56x = 15,263,415,898.46
  5. Step 5: Solve for x
    x = 15,263,415,898.46/141,711.56
  6. Step 6: Final answer
    x = 107,707.63

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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.