Home / 197,814-272,983.32-108,388.08

Finding the Fourth Proportional to 197,814, 272,983.32 and 108,388.08

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Solution

The fourth proportional to 197,814, 272,983.32 and 108,388.08 is: 149,575.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,814 : 272,983.32 = 108,388.08 : x
  2. Step 2: Convert to fraction form
    197,814/272,983.32 = 108,388.08/x
  3. Step 3: Cross multiply
    197,814x = 272,983.32 × 108,388.08
  4. Step 4: Simplify right side
    197,814x = 29,588,137,926.83
  5. Step 5: Solve for x
    x = 29,588,137,926.83/197,814
  6. Step 6: Final answer
    x = 149,575.55

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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.