Home / 136,620.36-188,471.75-88,856.28

Finding the Fourth Proportional to 136,620.36, 188,471.75 and 88,856.28

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Solution

The fourth proportional to 136,620.36, 188,471.75 and 88,856.28 is: 122,579.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,620.36 : 188,471.75 = 88,856.28 : x
  2. Step 2: Convert to fraction form
    136,620.36/188,471.75 = 88,856.28/x
  3. Step 3: Cross multiply
    136,620.36x = 188,471.75 × 88,856.28
  4. Step 4: Simplify right side
    136,620.36x = 16,746,898,590.09
  5. Step 5: Solve for x
    x = 16,746,898,590.09/136,620.36
  6. Step 6: Final answer
    x = 122,579.82

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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.