Home / 159,012.27-219,426.57-91,029.78

Finding the Fourth Proportional to 159,012.27, 219,426.57 and 91,029.78

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Solution

The fourth proportional to 159,012.27, 219,426.57 and 91,029.78 is: 125,615.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,012.27 : 219,426.57 = 91,029.78 : x
  2. Step 2: Convert to fraction form
    159,012.27/219,426.57 = 91,029.78/x
  3. Step 3: Cross multiply
    159,012.27x = 219,426.57 × 91,029.78
  4. Step 4: Simplify right side
    159,012.27x = 19,974,352,393.25
  5. Step 5: Solve for x
    x = 19,974,352,393.25/159,012.27
  6. Step 6: Final answer
    x = 125,615.16

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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.