Home / 142,377.18-196,463.19-78,706.14

Finding the Fourth Proportional to 142,377.18, 196,463.19 and 78,706.14

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Solution

The fourth proportional to 142,377.18, 196,463.19 and 78,706.14 is: 108,604.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,377.18 : 196,463.19 = 78,706.14 : x
  2. Step 2: Convert to fraction form
    142,377.18/196,463.19 = 78,706.14/x
  3. Step 3: Cross multiply
    142,377.18x = 196,463.19 × 78,706.14
  4. Step 4: Simplify right side
    142,377.18x = 15,462,859,336.99
  5. Step 5: Solve for x
    x = 15,462,859,336.99/142,377.18
  6. Step 6: Final answer
    x = 108,604.90

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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.