Home / 142,572.96-196,772.22-82,152.54

Finding the Fourth Proportional to 142,572.96, 196,772.22 and 82,152.54

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Solution

The fourth proportional to 142,572.96, 196,772.22 and 82,152.54 is: 113,382.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,572.96 : 196,772.22 = 82,152.54 : x
  2. Step 2: Convert to fraction form
    142,572.96/196,772.22 = 82,152.54/x
  3. Step 3: Cross multiply
    142,572.96x = 196,772.22 × 82,152.54
  4. Step 4: Simplify right side
    142,572.96x = 16,165,337,674.44
  5. Step 5: Solve for x
    x = 16,165,337,674.44/142,572.96
  6. Step 6: Final answer
    x = 113,382.91

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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.