Home / 109,146.06-150,620.19-61,399.74

Finding the Fourth Proportional to 109,146.06, 150,620.19 and 61,399.74

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Solution

The fourth proportional to 109,146.06, 150,620.19 and 61,399.74 is: 84,730.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,146.06 : 150,620.19 = 61,399.74 : x
  2. Step 2: Convert to fraction form
    109,146.06/150,620.19 = 61,399.74/x
  3. Step 3: Cross multiply
    109,146.06x = 150,620.19 × 61,399.74
  4. Step 4: Simplify right side
    109,146.06x = 9,248,040,504.75
  5. Step 5: Solve for x
    x = 9,248,040,504.75/109,146.06
  6. Step 6: Final answer
    x = 84,730.87

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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.