Home / 142,463.82-196,596.60-78,800.22

Finding the Fourth Proportional to 142,463.82, 196,596.60 and 78,800.22

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Solution

The fourth proportional to 142,463.82, 196,596.60 and 78,800.22 is: 108,742.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,463.82 : 196,596.60 = 78,800.22 : x
  2. Step 2: Convert to fraction form
    142,463.82/196,596.60 = 78,800.22/x
  3. Step 3: Cross multiply
    142,463.82x = 196,596.60 × 78,800.22
  4. Step 4: Simplify right side
    142,463.82x = 15,491,855,331.25
  5. Step 5: Solve for x
    x = 15,491,855,331.25/142,463.82
  6. Step 6: Final answer
    x = 108,742.38

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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.