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Finding the Fourth Proportional to 185,672.31, 256,227.08 and 100,788.63

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Solution

The fourth proportional to 185,672.31, 256,227.08 and 100,788.63 is: 139,087.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,672.31 : 256,227.08 = 100,788.63 : x
  2. Step 2: Convert to fraction form
    185,672.31/256,227.08 = 100,788.63/x
  3. Step 3: Cross multiply
    185,672.31x = 256,227.08 × 100,788.63
  4. Step 4: Simplify right side
    185,672.31x = 25,824,775,858.16
  5. Step 5: Solve for x
    x = 25,824,775,858.16/185,672.31
  6. Step 6: Final answer
    x = 139,087.92

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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.