Home / 143,647.36-198,238.08-82,404.07

Finding the Fourth Proportional to 143,647.36, 198,238.08 and 82,404.07

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Solution

The fourth proportional to 143,647.36, 198,238.08 and 82,404.07 is: 113,720.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,647.36 : 198,238.08 = 82,404.07 : x
  2. Step 2: Convert to fraction form
    143,647.36/198,238.08 = 82,404.07/x
  3. Step 3: Cross multiply
    143,647.36x = 198,238.08 × 82,404.07
  4. Step 4: Simplify right side
    143,647.36x = 16,335,624,434.41
  5. Step 5: Solve for x
    x = 16,335,624,434.41/143,647.36
  6. Step 6: Final answer
    x = 113,720.33

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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.