Home / 142,930.94-197,213.15-82,488.74

Finding the Fourth Proportional to 142,930.94, 197,213.15 and 82,488.74

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Solution

The fourth proportional to 142,930.94, 197,213.15 and 82,488.74 is: 113,816.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,930.94 : 197,213.15 = 82,488.74 : x
  2. Step 2: Convert to fraction form
    142,930.94/197,213.15 = 82,488.74/x
  3. Step 3: Cross multiply
    142,930.94x = 197,213.15 × 82,488.74
  4. Step 4: Simplify right side
    142,930.94x = 16,267,864,254.93
  5. Step 5: Solve for x
    x = 16,267,864,254.93/142,930.94
  6. Step 6: Final answer
    x = 113,816.25

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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.