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Finding the Fourth Proportional to 80,187, 110,530.58 and 63,164.29

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Solution

The fourth proportional to 80,187, 110,530.58 and 63,164.29 is: 87,066.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,187 : 110,530.58 = 63,164.29 : x
  2. Step 2: Convert to fraction form
    80,187/110,530.58 = 63,164.29/x
  3. Step 3: Cross multiply
    80,187x = 110,530.58 × 63,164.29
  4. Step 4: Simplify right side
    80,187x = 6,981,585,293.17
  5. Step 5: Solve for x
    x = 6,981,585,293.17/80,187
  6. Step 6: Final answer
    x = 87,066.30

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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.