Home / 185,742.72-256,325.31-100,859.79

Finding the Fourth Proportional to 185,742.72, 256,325.31 and 100,859.79

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Solution

The fourth proportional to 185,742.72, 256,325.31 and 100,859.79 is: 139,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,742.72 : 256,325.31 = 100,859.79 : x
  2. Step 2: Convert to fraction form
    185,742.72/256,325.31 = 100,859.79/x
  3. Step 3: Cross multiply
    185,742.72x = 256,325.31 × 100,859.79
  4. Step 4: Simplify right side
    185,742.72x = 25,852,916,938.28
  5. Step 5: Solve for x
    x = 25,852,916,938.28/185,742.72
  6. Step 6: Final answer
    x = 139,186.70

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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.