Home / 144,568-199,626.96-90,942.76

Finding the Fourth Proportional to 144,568, 199,626.96 and 90,942.76

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Solution

The fourth proportional to 144,568, 199,626.96 and 90,942.76 is: 125,578.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,568 : 199,626.96 = 90,942.76 : x
  2. Step 2: Convert to fraction form
    144,568/199,626.96 = 90,942.76/x
  3. Step 3: Cross multiply
    144,568x = 199,626.96 × 90,942.76
  4. Step 4: Simplify right side
    144,568x = 18,154,626,712.81
  5. Step 5: Solve for x
    x = 18,154,626,712.81/144,568
  6. Step 6: Final answer
    x = 125,578.46

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1.5x scale

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.