Home / 201,575.07-278,185.10-115,548.39

Finding the Fourth Proportional to 201,575.07, 278,185.10 and 115,548.39

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Solution

The fourth proportional to 201,575.07, 278,185.10 and 115,548.39 is: 159,463.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,575.07 : 278,185.10 = 115,548.39 : x
  2. Step 2: Convert to fraction form
    201,575.07/278,185.10 = 115,548.39/x
  3. Step 3: Cross multiply
    201,575.07x = 278,185.10 × 115,548.39
  4. Step 4: Simplify right side
    201,575.07x = 32,143,839,849.25
  5. Step 5: Solve for x
    x = 32,143,839,849.25/201,575.07
  6. Step 6: Final answer
    x = 159,463.37

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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.