Home / 142,929.94-197,211.77-82,487.74

Finding the Fourth Proportional to 142,929.94, 197,211.77 and 82,487.74

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Solution

The fourth proportional to 142,929.94, 197,211.77 and 82,487.74 is: 113,814.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,929.94 : 197,211.77 = 82,487.74 : x
  2. Step 2: Convert to fraction form
    142,929.94/197,211.77 = 82,487.74/x
  3. Step 3: Cross multiply
    142,929.94x = 197,211.77 × 82,487.74
  4. Step 4: Simplify right side
    142,929.94x = 16,267,553,208.70
  5. Step 5: Solve for x
    x = 16,267,553,208.70/142,929.94
  6. Step 6: Final answer
    x = 113,814.87

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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.