Home / 143,513.66-198,065.91-82,281.75

Finding the Fourth Proportional to 143,513.66, 198,065.91 and 82,281.75

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Solution

The fourth proportional to 143,513.66, 198,065.91 and 82,281.75 is: 113,558.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,513.66 : 198,065.91 = 82,281.75 : x
  2. Step 2: Convert to fraction form
    143,513.66/198,065.91 = 82,281.75/x
  3. Step 3: Cross multiply
    143,513.66x = 198,065.91 × 82,281.75
  4. Step 4: Simplify right side
    143,513.66x = 16,297,209,690.14
  5. Step 5: Solve for x
    x = 16,297,209,690.14/143,513.66
  6. Step 6: Final answer
    x = 113,558.60

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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.