Home / 185,670.49-256,225.05-100,787.56

Finding the Fourth Proportional to 185,670.49, 256,225.05 and 100,787.56

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Solution

The fourth proportional to 185,670.49, 256,225.05 and 100,787.56 is: 139,086.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,670.49 : 256,225.05 = 100,787.56 : x
  2. Step 2: Convert to fraction form
    185,670.49/256,225.05 = 100,787.56/x
  3. Step 3: Cross multiply
    185,670.49x = 256,225.05 × 100,787.56
  4. Step 4: Simplify right side
    185,670.49x = 25,824,297,600.38
  5. Step 5: Solve for x
    x = 25,824,297,600.38/185,670.49
  6. Step 6: Final answer
    x = 139,086.71

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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.