Home / 213,619.47-320,477.67-113,727.03

Finding the Fourth Proportional to 213,619.47, 320,477.67 and 113,727.03

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Solution

The fourth proportional to 213,619.47, 320,477.67 and 113,727.03 is: 170,616.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,619.47 : 320,477.67 = 113,727.03 : x
  2. Step 2: Convert to fraction form
    213,619.47/320,477.67 = 113,727.03/x
  3. Step 3: Cross multiply
    213,619.47x = 320,477.67 × 113,727.03
  4. Step 4: Simplify right side
    213,619.47x = 36,446,973,590.42
  5. Step 5: Solve for x
    x = 36,446,973,590.42/213,619.47
  6. Step 6: Final answer
    x = 170,616.35

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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.