Home / 90,718.92-135,466.97-74,111.76

Finding the Fourth Proportional to 90,718.92, 135,466.97 and 74,111.76

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Solution

The fourth proportional to 90,718.92, 135,466.97 and 74,111.76 is: 110,668.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,718.92 : 135,466.97 = 74,111.76 : x
  2. Step 2: Convert to fraction form
    90,718.92/135,466.97 = 74,111.76/x
  3. Step 3: Cross multiply
    90,718.92x = 135,466.97 × 74,111.76
  4. Step 4: Simplify right side
    90,718.92x = 10,039,695,198.01
  5. Step 5: Solve for x
    x = 10,039,695,198.01/90,718.92
  6. Step 6: Final answer
    x = 110,668.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.