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Finding the Fourth Proportional to 188,889.79, 260,673.65 and 104,009.89

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Solution

The fourth proportional to 188,889.79, 260,673.65 and 104,009.89 is: 143,536.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,889.79 : 260,673.65 = 104,009.89 : x
  2. Step 2: Convert to fraction form
    188,889.79/260,673.65 = 104,009.89/x
  3. Step 3: Cross multiply
    188,889.79x = 260,673.65 × 104,009.89
  4. Step 4: Simplify right side
    188,889.79x = 27,112,637,662.40
  5. Step 5: Solve for x
    x = 27,112,637,662.40/188,889.79
  6. Step 6: Final answer
    x = 143,536.81

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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.