Home / 100,701.27-138,956.99-58,251.87

Finding the Fourth Proportional to 100,701.27, 138,956.99 and 58,251.87

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Solution

The fourth proportional to 100,701.27, 138,956.99 and 58,251.87 is: 80,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,701.27 : 138,956.99 = 58,251.87 : x
  2. Step 2: Convert to fraction form
    100,701.27/138,956.99 = 58,251.87/x
  3. Step 3: Cross multiply
    100,701.27x = 138,956.99 × 58,251.87
  4. Step 4: Simplify right side
    100,701.27x = 8,094,504,225.81
  5. Step 5: Solve for x
    x = 8,094,504,225.81/100,701.27
  6. Step 6: Final answer
    x = 80,381.35

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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.