Home / 151,997.64-209,785.73-100,223.70

Finding the Fourth Proportional to 151,997.64, 209,785.73 and 100,223.70

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Solution

The fourth proportional to 151,997.64, 209,785.73 and 100,223.70 is: 138,327.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,997.64 : 209,785.73 = 100,223.70 : x
  2. Step 2: Convert to fraction form
    151,997.64/209,785.73 = 100,223.70/x
  3. Step 3: Cross multiply
    151,997.64x = 209,785.73 × 100,223.70
  4. Step 4: Simplify right side
    151,997.64x = 21,025,501,566.68
  5. Step 5: Solve for x
    x = 21,025,501,566.68/151,997.64
  6. Step 6: Final answer
    x = 138,327.82

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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.