Home / 201,709.12-278,235.78-124,197.24

Finding the Fourth Proportional to 201,709.12, 278,235.78 and 124,197.24

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Solution

The fourth proportional to 201,709.12, 278,235.78 and 124,197.24 is: 171,316.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,709.12 : 278,235.78 = 124,197.24 : x
  2. Step 2: Convert to fraction form
    201,709.12/278,235.78 = 124,197.24/x
  3. Step 3: Cross multiply
    201,709.12x = 278,235.78 × 124,197.24
  4. Step 4: Simplify right side
    201,709.12x = 34,556,115,945.25
  5. Step 5: Solve for x
    x = 34,556,115,945.25/201,709.12
  6. Step 6: Final answer
    x = 171,316.58

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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.