Home / 144,022.92-198,749.88-90,339.36

Finding the Fourth Proportional to 144,022.92, 198,749.88 and 90,339.36

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Solution

The fourth proportional to 144,022.92, 198,749.88 and 90,339.36 is: 124,667.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,022.92 : 198,749.88 = 90,339.36 : x
  2. Step 2: Convert to fraction form
    144,022.92/198,749.88 = 90,339.36/x
  3. Step 3: Cross multiply
    144,022.92x = 198,749.88 × 90,339.36
  4. Step 4: Simplify right side
    144,022.92x = 17,954,936,959.28
  5. Step 5: Solve for x
    x = 17,954,936,959.28/144,022.92
  6. Step 6: Final answer
    x = 124,667.22

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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.