Home / 144,663.29-199,612.09-90,910.25

Finding the Fourth Proportional to 144,663.29, 199,612.09 and 90,910.25

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Solution

The fourth proportional to 144,663.29, 199,612.09 and 90,910.25 is: 125,441.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,663.29 : 199,612.09 = 90,910.25 : x
  2. Step 2: Convert to fraction form
    144,663.29/199,612.09 = 90,910.25/x
  3. Step 3: Cross multiply
    144,663.29x = 199,612.09 × 90,910.25
  4. Step 4: Simplify right side
    144,663.29x = 18,146,785,991.86
  5. Step 5: Solve for x
    x = 18,146,785,991.86/144,663.29
  6. Step 6: Final answer
    x = 125,441.54

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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.