Home / 213,235.36-320,048.16-108,126.88

Finding the Fourth Proportional to 213,235.36, 320,048.16 and 108,126.88

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Solution

The fourth proportional to 213,235.36, 320,048.16 and 108,126.88 is: 162,289.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,235.36 : 320,048.16 = 108,126.88 : x
  2. Step 2: Convert to fraction form
    213,235.36/320,048.16 = 108,126.88/x
  3. Step 3: Cross multiply
    213,235.36x = 320,048.16 × 108,126.88
  4. Step 4: Simplify right side
    213,235.36x = 34,605,808,990.54
  5. Step 5: Solve for x
    x = 34,605,808,990.54/213,235.36
  6. Step 6: Final answer
    x = 162,289.26

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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.