Home / 143,324.80-197,790.48-82,909.12

Finding the Fourth Proportional to 143,324.80, 197,790.48 and 82,909.12

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Solution

The fourth proportional to 143,324.80, 197,790.48 and 82,909.12 is: 114,415.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,324.80 : 197,790.48 = 82,909.12 : x
  2. Step 2: Convert to fraction form
    143,324.80/197,790.48 = 82,909.12/x
  3. Step 3: Cross multiply
    143,324.80x = 197,790.48 × 82,909.12
  4. Step 4: Simplify right side
    143,324.80x = 16,398,634,641.18
  5. Step 5: Solve for x
    x = 16,398,634,641.18/143,324.80
  6. Step 6: Final answer
    x = 114,415.89

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1.5x scale

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.