Home / 209,331.19-288,865.20-113,837.86

Finding the Fourth Proportional to 209,331.19, 288,865.20 and 113,837.86

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Solution

The fourth proportional to 209,331.19, 288,865.20 and 113,837.86 is: 157,089.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,331.19 : 288,865.20 = 113,837.86 : x
  2. Step 2: Convert to fraction form
    209,331.19/288,865.20 = 113,837.86/x
  3. Step 3: Cross multiply
    209,331.19x = 288,865.20 × 113,837.86
  4. Step 4: Simplify right side
    209,331.19x = 32,883,796,196.47
  5. Step 5: Solve for x
    x = 32,883,796,196.47/209,331.19
  6. Step 6: Final answer
    x = 157,089.81

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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.