Home / 131,241.60-181,113.36-71,625.60

Finding the Fourth Proportional to 131,241.60, 181,113.36 and 71,625.60

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Solution

The fourth proportional to 131,241.60, 181,113.36 and 71,625.60 is: 98,843.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,241.60 : 181,113.36 = 71,625.60 : x
  2. Step 2: Convert to fraction form
    131,241.60/181,113.36 = 71,625.60/x
  3. Step 3: Cross multiply
    131,241.60x = 181,113.36 × 71,625.60
  4. Step 4: Simplify right side
    131,241.60x = 12,972,353,078.02
  5. Step 5: Solve for x
    x = 12,972,353,078.02/131,241.60
  6. Step 6: Final answer
    x = 98,843.30

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1.5x scale

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.