Home / 98,198.72-135,515.12-55,758.16

Finding the Fourth Proportional to 98,198.72, 135,515.12 and 55,758.16

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Solution

The fourth proportional to 98,198.72, 135,515.12 and 55,758.16 is: 76,946.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,198.72 : 135,515.12 = 55,758.16 : x
  2. Step 2: Convert to fraction form
    98,198.72/135,515.12 = 55,758.16/x
  3. Step 3: Cross multiply
    98,198.72x = 135,515.12 × 55,758.16
  4. Step 4: Simplify right side
    98,198.72x = 7,556,073,743.38
  5. Step 5: Solve for x
    x = 7,556,073,743.38/98,198.72
  6. Step 6: Final answer
    x = 76,946.76

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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.