Home / 133,911.12-200,879.64-39,139.17

Finding the Fourth Proportional to 133,911.12, 200,879.64 and 39,139.17

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Solution

The fourth proportional to 133,911.12, 200,879.64 and 39,139.17 is: 58,712.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,911.12 : 200,879.64 = 39,139.17 : x
  2. Step 2: Convert to fraction form
    133,911.12/200,879.64 = 39,139.17/x
  3. Step 3: Cross multiply
    133,911.12x = 200,879.64 × 39,139.17
  4. Step 4: Simplify right side
    133,911.12x = 7,862,262,379.50
  5. Step 5: Solve for x
    x = 7,862,262,379.50/133,911.12
  6. Step 6: Final answer
    x = 58,712.54

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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.