Home / 125,954.92-188,998.26-81,570.16

Finding the Fourth Proportional to 125,954.92, 188,998.26 and 81,570.16

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Solution

The fourth proportional to 125,954.92, 188,998.26 and 81,570.16 is: 122,397.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,954.92 : 188,998.26 = 81,570.16 : x
  2. Step 2: Convert to fraction form
    125,954.92/188,998.26 = 81,570.16/x
  3. Step 3: Cross multiply
    125,954.92x = 188,998.26 × 81,570.16
  4. Step 4: Simplify right side
    125,954.92x = 15,416,618,307.92
  5. Step 5: Solve for x
    x = 15,416,618,307.92/125,954.92
  6. Step 6: Final answer
    x = 122,397.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.