Home / 188,769.47-260,507.39-103,886.54

Finding the Fourth Proportional to 188,769.47, 260,507.39 and 103,886.54

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Solution

The fourth proportional to 188,769.47, 260,507.39 and 103,886.54 is: 143,366.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,769.47 : 260,507.39 = 103,886.54 : x
  2. Step 2: Convert to fraction form
    188,769.47/260,507.39 = 103,886.54/x
  3. Step 3: Cross multiply
    188,769.47x = 260,507.39 × 103,886.54
  4. Step 4: Simplify right side
    188,769.47x = 27,063,209,569.56
  5. Step 5: Solve for x
    x = 27,063,209,569.56/188,769.47
  6. Step 6: Final answer
    x = 143,366.46

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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.