Home / 185,739.12-256,317.75-100,856.79

Finding the Fourth Proportional to 185,739.12, 256,317.75 and 100,856.79

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Solution

The fourth proportional to 185,739.12, 256,317.75 and 100,856.79 is: 139,181.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,739.12 : 256,317.75 = 100,856.79 : x
  2. Step 2: Convert to fraction form
    185,739.12/256,317.75 = 100,856.79/x
  3. Step 3: Cross multiply
    185,739.12x = 256,317.75 × 100,856.79
  4. Step 4: Simplify right side
    185,739.12x = 25,851,385,485.02
  5. Step 5: Solve for x
    x = 25,851,385,485.02/185,739.12
  6. Step 6: Final answer
    x = 139,181.16

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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.