Home / 185,625.72-256,163.67-100,742.81

Finding the Fourth Proportional to 185,625.72, 256,163.67 and 100,742.81

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Solution

The fourth proportional to 185,625.72, 256,163.67 and 100,742.81 is: 139,025.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,625.72 : 256,163.67 = 100,742.81 : x
  2. Step 2: Convert to fraction form
    185,625.72/256,163.67 = 100,742.81/x
  3. Step 3: Cross multiply
    185,625.72x = 256,163.67 × 100,742.81
  4. Step 4: Simplify right side
    185,625.72x = 25,806,646,654.89
  5. Step 5: Solve for x
    x = 25,806,646,654.89/185,625.72
  6. Step 6: Final answer
    x = 139,025.17

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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.