Home / 196,031.12-270,521.64-108,815.20

Finding the Fourth Proportional to 196,031.12, 270,521.64 and 108,815.20

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Solution

The fourth proportional to 196,031.12, 270,521.64 and 108,815.20 is: 150,164.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,031.12 : 270,521.64 = 108,815.20 : x
  2. Step 2: Convert to fraction form
    196,031.12/270,521.64 = 108,815.20/x
  3. Step 3: Cross multiply
    196,031.12x = 270,521.64 × 108,815.20
  4. Step 4: Simplify right side
    196,031.12x = 29,436,866,360.93
  5. Step 5: Solve for x
    x = 29,436,866,360.93/196,031.12
  6. Step 6: Final answer
    x = 150,164.25

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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.