Home / 201,936.65-278,720.07-125,513.47

Finding the Fourth Proportional to 201,936.65, 278,720.07 and 125,513.47

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Solution

The fourth proportional to 201,936.65, 278,720.07 and 125,513.47 is: 173,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,936.65 : 278,720.07 = 125,513.47 : x
  2. Step 2: Convert to fraction form
    201,936.65/278,720.07 = 125,513.47/x
  3. Step 3: Cross multiply
    201,936.65x = 278,720.07 × 125,513.47
  4. Step 4: Simplify right side
    201,936.65x = 34,983,123,144.34
  5. Step 5: Solve for x
    x = 34,983,123,144.34/201,936.65
  6. Step 6: Final answer
    x = 173,238.11

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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.