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Finding the Fourth Proportional to 133,327.20, 199,990.80 and 120,424.80

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Solution

The fourth proportional to 133,327.20, 199,990.80 and 120,424.80 is: 180,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,327.20 : 199,990.80 = 120,424.80 : x
  2. Step 2: Convert to fraction form
    133,327.20/199,990.80 = 120,424.80/x
  3. Step 3: Cross multiply
    133,327.20x = 199,990.80 × 120,424.80
  4. Step 4: Simplify right side
    133,327.20x = 24,083,852,091.84
  5. Step 5: Solve for x
    x = 24,083,852,091.84/133,327.20
  6. Step 6: Final answer
    x = 180,637.20

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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.