Home / 131,488.80-197,233.20-84,249.60

Finding the Fourth Proportional to 131,488.80, 197,233.20 and 84,249.60

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Solution

The fourth proportional to 131,488.80, 197,233.20 and 84,249.60 is: 126,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,488.80 : 197,233.20 = 84,249.60 : x
  2. Step 2: Convert to fraction form
    131,488.80/197,233.20 = 84,249.60/x
  3. Step 3: Cross multiply
    131,488.80x = 197,233.20 × 84,249.60
  4. Step 4: Simplify right side
    131,488.80x = 16,616,818,206.72
  5. Step 5: Solve for x
    x = 16,616,818,206.72/131,488.80
  6. Step 6: Final answer
    x = 126,374.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.