Home / 144,287.22-199,139.60-90,579.97

Finding the Fourth Proportional to 144,287.22, 199,139.60 and 90,579.97

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Solution

The fourth proportional to 144,287.22, 199,139.60 and 90,579.97 is: 125,014.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,287.22 : 199,139.60 = 90,579.97 : x
  2. Step 2: Convert to fraction form
    144,287.22/199,139.60 = 90,579.97/x
  3. Step 3: Cross multiply
    144,287.22x = 199,139.60 × 90,579.97
  4. Step 4: Simplify right side
    144,287.22x = 18,038,057,545.21
  5. Step 5: Solve for x
    x = 18,038,057,545.21/144,287.22
  6. Step 6: Final answer
    x = 125,014.94

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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.