Home / 199,739.40-299,678.94-124,771.62

Finding the Fourth Proportional to 199,739.40, 299,678.94 and 124,771.62

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Solution

The fourth proportional to 199,739.40, 299,678.94 and 124,771.62 is: 187,201.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,739.40 : 299,678.94 = 124,771.62 : x
  2. Step 2: Convert to fraction form
    199,739.40/299,678.94 = 124,771.62/x
  3. Step 3: Cross multiply
    199,739.40x = 299,678.94 × 124,771.62
  4. Step 4: Simplify right side
    199,739.40x = 37,391,426,823.68
  5. Step 5: Solve for x
    x = 37,391,426,823.68/199,739.40
  6. Step 6: Final answer
    x = 187,201.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.