Home / 143,098.41-197,465.91-79,431.18

Finding the Fourth Proportional to 143,098.41, 197,465.91 and 79,431.18

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Solution

The fourth proportional to 143,098.41, 197,465.91 and 79,431.18 is: 109,609.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,098.41 : 197,465.91 = 79,431.18 : x
  2. Step 2: Convert to fraction form
    143,098.41/197,465.91 = 79,431.18/x
  3. Step 3: Cross multiply
    143,098.41x = 197,465.91 × 79,431.18
  4. Step 4: Simplify right side
    143,098.41x = 15,684,950,241.07
  5. Step 5: Solve for x
    x = 15,684,950,241.07/143,098.41
  6. Step 6: Final answer
    x = 109,609.54

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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.