Home / 133,328.20-199,992.30-54,401.80

Finding the Fourth Proportional to 133,328.20, 199,992.30 and 54,401.80

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Solution

The fourth proportional to 133,328.20, 199,992.30 and 54,401.80 is: 81,602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,328.20 : 199,992.30 = 54,401.80 : x
  2. Step 2: Convert to fraction form
    133,328.20/199,992.30 = 54,401.80/x
  3. Step 3: Cross multiply
    133,328.20x = 199,992.30 × 54,401.80
  4. Step 4: Simplify right side
    133,328.20x = 10,879,941,106.14
  5. Step 5: Solve for x
    x = 10,879,941,106.14/133,328.20
  6. Step 6: Final answer
    x = 81,602.70

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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.