Home / 213,799.36-320,647.20-89,072.32

Finding the Fourth Proportional to 213,799.36, 320,647.20 and 89,072.32

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Solution

The fourth proportional to 213,799.36, 320,647.20 and 89,072.32 is: 133,586.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,799.36 : 320,647.20 = 89,072.32 : x
  2. Step 2: Convert to fraction form
    213,799.36/320,647.20 = 89,072.32/x
  3. Step 3: Cross multiply
    213,799.36x = 320,647.20 × 89,072.32
  4. Step 4: Simplify right side
    213,799.36x = 28,560,790,005.50
  5. Step 5: Solve for x
    x = 28,560,790,005.50/213,799.36
  6. Step 6: Final answer
    x = 133,586.88

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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.