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Finding the Fourth Proportional to 185,753.02, 256,340.42 and 100,870.08

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Solution

The fourth proportional to 185,753.02, 256,340.42 and 100,870.08 is: 139,201.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,753.02 : 256,340.42 = 100,870.08 : x
  2. Step 2: Convert to fraction form
    185,753.02/256,340.42 = 100,870.08/x
  3. Step 3: Cross multiply
    185,753.02x = 256,340.42 × 100,870.08
  4. Step 4: Simplify right side
    185,753.02x = 25,857,078,672.63
  5. Step 5: Solve for x
    x = 25,857,078,672.63/185,753.02
  6. Step 6: Final answer
    x = 139,201.39

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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.