Home / 188,928.51-260,721.57-102,887.64

Finding the Fourth Proportional to 188,928.51, 260,721.57 and 102,887.64

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Solution

The fourth proportional to 188,928.51, 260,721.57 and 102,887.64 is: 141,985.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,928.51 : 260,721.57 = 102,887.64 : x
  2. Step 2: Convert to fraction form
    188,928.51/260,721.57 = 102,887.64/x
  3. Step 3: Cross multiply
    188,928.51x = 260,721.57 × 102,887.64
  4. Step 4: Simplify right side
    188,928.51x = 26,825,027,034.39
  5. Step 5: Solve for x
    x = 26,825,027,034.39/188,928.51
  6. Step 6: Final answer
    x = 141,985.07

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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.