Home / 159,391.13-219,940.62-91,404.59

Finding the Fourth Proportional to 159,391.13, 219,940.62 and 91,404.59

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Solution

The fourth proportional to 159,391.13, 219,940.62 and 91,404.59 is: 126,127.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,391.13 : 219,940.62 = 91,404.59 : x
  2. Step 2: Convert to fraction form
    159,391.13/219,940.62 = 91,404.59/x
  3. Step 3: Cross multiply
    159,391.13x = 219,940.62 × 91,404.59
  4. Step 4: Simplify right side
    159,391.13x = 20,103,580,752.98
  5. Step 5: Solve for x
    x = 20,103,580,752.98/159,391.13
  6. Step 6: Final answer
    x = 126,127.35

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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.