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Finding the Fourth Proportional to 149,041.80, 223,781.40 and 89,992.80

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Solution

The fourth proportional to 149,041.80, 223,781.40 and 89,992.80 is: 135,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,041.80 : 223,781.40 = 89,992.80 : x
  2. Step 2: Convert to fraction form
    149,041.80/223,781.40 = 89,992.80/x
  3. Step 3: Cross multiply
    149,041.80x = 223,781.40 × 89,992.80
  4. Step 4: Simplify right side
    149,041.80x = 20,138,714,773.92
  5. Step 5: Solve for x
    x = 20,138,714,773.92/149,041.80
  6. Step 6: Final answer
    x = 135,121.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.