Home / 201,566.26-278,172.93-115,539.57

Finding the Fourth Proportional to 201,566.26, 278,172.93 and 115,539.57

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Solution

The fourth proportional to 201,566.26, 278,172.93 and 115,539.57 is: 159,451.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,566.26 : 278,172.93 = 115,539.57 : x
  2. Step 2: Convert to fraction form
    201,566.26/278,172.93 = 115,539.57/x
  3. Step 3: Cross multiply
    201,566.26x = 278,172.93 × 115,539.57
  4. Step 4: Simplify right side
    201,566.26x = 32,139,981,151.11
  5. Step 5: Solve for x
    x = 32,139,981,151.11/201,566.26
  6. Step 6: Final answer
    x = 159,451.19

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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.