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Finding the Fourth Proportional to 131,241.88, 181,200.96 and 100,973.80

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Solution

The fourth proportional to 131,241.88, 181,200.96 and 100,973.80 is: 139,410.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,241.88 : 181,200.96 = 100,973.80 : x
  2. Step 2: Convert to fraction form
    131,241.88/181,200.96 = 100,973.80/x
  3. Step 3: Cross multiply
    131,241.88x = 181,200.96 × 100,973.80
  4. Step 4: Simplify right side
    131,241.88x = 18,296,549,494.85
  5. Step 5: Solve for x
    x = 18,296,549,494.85/131,241.88
  6. Step 6: Final answer
    x = 139,410.91

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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.