Home / 100,646.27-138,892.13-57,626.42

Finding the Fourth Proportional to 100,646.27, 138,892.13 and 57,626.42

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Solution

The fourth proportional to 100,646.27, 138,892.13 and 57,626.42 is: 79,524.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,646.27 : 138,892.13 = 57,626.42 : x
  2. Step 2: Convert to fraction form
    100,646.27/138,892.13 = 57,626.42/x
  3. Step 3: Cross multiply
    100,646.27x = 138,892.13 × 57,626.42
  4. Step 4: Simplify right side
    100,646.27x = 8,003,855,667.68
  5. Step 5: Solve for x
    x = 8,003,855,667.68/100,646.27
  6. Step 6: Final answer
    x = 79,524.62

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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.