Home / 185,607.22-256,138.66-100,724.26

Finding the Fourth Proportional to 185,607.22, 256,138.66 and 100,724.26

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Solution

The fourth proportional to 185,607.22, 256,138.66 and 100,724.26 is: 138,999.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,607.22 : 256,138.66 = 100,724.26 : x
  2. Step 2: Convert to fraction form
    185,607.22/256,138.66 = 100,724.26/x
  3. Step 3: Cross multiply
    185,607.22x = 256,138.66 × 100,724.26
  4. Step 4: Simplify right side
    185,607.22x = 25,799,376,985.89
  5. Step 5: Solve for x
    x = 25,799,376,985.89/185,607.22
  6. Step 6: Final answer
    x = 138,999.86

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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.