Home / 185,200.48-255,575.82-100,317.75

Finding the Fourth Proportional to 185,200.48, 255,575.82 and 100,317.75

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Solution

The fourth proportional to 185,200.48, 255,575.82 and 100,317.75 is: 138,438.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,200.48 : 255,575.82 = 100,317.75 : x
  2. Step 2: Convert to fraction form
    185,200.48/255,575.82 = 100,317.75/x
  3. Step 3: Cross multiply
    185,200.48x = 255,575.82 × 100,317.75
  4. Step 4: Simplify right side
    185,200.48x = 25,638,791,216.81
  5. Step 5: Solve for x
    x = 25,638,791,216.81/185,200.48
  6. Step 6: Final answer
    x = 138,438.04

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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.