Home / 209,163.32-288,647.21-113,670.03

Finding the Fourth Proportional to 209,163.32, 288,647.21 and 113,670.03

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Solution

The fourth proportional to 209,163.32, 288,647.21 and 113,670.03 is: 156,865.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,163.32 : 288,647.21 = 113,670.03 : x
  2. Step 2: Convert to fraction form
    209,163.32/288,647.21 = 113,670.03/x
  3. Step 3: Cross multiply
    209,163.32x = 288,647.21 × 113,670.03
  4. Step 4: Simplify right side
    209,163.32x = 32,810,537,020.12
  5. Step 5: Solve for x
    x = 32,810,537,020.12/209,163.32
  6. Step 6: Final answer
    x = 156,865.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.