Home / 185,691.20-256,252.48-100,806.08

Finding the Fourth Proportional to 185,691.20, 256,252.48 and 100,806.08

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Solution

The fourth proportional to 185,691.20, 256,252.48 and 100,806.08 is: 139,111.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,691.20 : 256,252.48 = 100,806.08 : x
  2. Step 2: Convert to fraction form
    185,691.20/256,252.48 = 100,806.08/x
  3. Step 3: Cross multiply
    185,691.20x = 256,252.48 × 100,806.08
  4. Step 4: Simplify right side
    185,691.20x = 25,831,807,999.08
  5. Step 5: Solve for x
    x = 25,831,807,999.08/185,691.20
  6. Step 6: Final answer
    x = 139,111.64

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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.