Home / 188,447.12-260,058.48-103,565.60

Finding the Fourth Proportional to 188,447.12, 260,058.48 and 103,565.60

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Solution

The fourth proportional to 188,447.12, 260,058.48 and 103,565.60 is: 142,921.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,447.12 : 260,058.48 = 103,565.60 : x
  2. Step 2: Convert to fraction form
    188,447.12/260,058.48 = 103,565.60/x
  3. Step 3: Cross multiply
    188,447.12x = 260,058.48 × 103,565.60
  4. Step 4: Simplify right side
    188,447.12x = 26,933,112,516.29
  5. Step 5: Solve for x
    x = 26,933,112,516.29/188,447.12
  6. Step 6: Final answer
    x = 142,921.33

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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.