Home / 142,904.10-197,193.45-82,494.21

Finding the Fourth Proportional to 142,904.10, 197,193.45 and 82,494.21

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Solution

The fourth proportional to 142,904.10, 197,193.45 and 82,494.21 is: 113,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,904.10 : 197,193.45 = 82,494.21 : x
  2. Step 2: Convert to fraction form
    142,904.10/197,193.45 = 82,494.21/x
  3. Step 3: Cross multiply
    142,904.10x = 197,193.45 × 82,494.21
  4. Step 4: Simplify right side
    142,904.10x = 16,267,317,874.92
  5. Step 5: Solve for x
    x = 16,267,317,874.92/142,904.10
  6. Step 6: Final answer
    x = 113,833.80

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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.