Home / 209,523.43-289,172.80-117,653.02

Finding the Fourth Proportional to 209,523.43, 289,172.80 and 117,653.02

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Solution

The fourth proportional to 209,523.43, 289,172.80 and 117,653.02 is: 162,378.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,523.43 : 289,172.80 = 117,653.02 : x
  2. Step 2: Convert to fraction form
    209,523.43/289,172.80 = 117,653.02/x
  3. Step 3: Cross multiply
    209,523.43x = 289,172.80 × 117,653.02
  4. Step 4: Simplify right side
    209,523.43x = 34,022,053,650.66
  5. Step 5: Solve for x
    x = 34,022,053,650.66/209,523.43
  6. Step 6: Final answer
    x = 162,378.28

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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.