Home / 209,085.29-288,536.94-113,591.15

Finding the Fourth Proportional to 209,085.29, 288,536.94 and 113,591.15

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Solution

The fourth proportional to 209,085.29, 288,536.94 and 113,591.15 is: 156,755.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,085.29 : 288,536.94 = 113,591.15 : x
  2. Step 2: Convert to fraction form
    209,085.29/288,536.94 = 113,591.15/x
  3. Step 3: Cross multiply
    209,085.29x = 288,536.94 × 113,591.15
  4. Step 4: Simplify right side
    209,085.29x = 32,775,241,389.40
  5. Step 5: Solve for x
    x = 32,775,241,389.40/209,085.29
  6. Step 6: Final answer
    x = 156,755.37

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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.