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Finding the Fourth Proportional to 187,879.36, 259,301.21 and 118,975.11

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Solution

The fourth proportional to 187,879.36, 259,301.21 and 118,975.11 is: 164,203.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,879.36 : 259,301.21 = 118,975.11 : x
  2. Step 2: Convert to fraction form
    187,879.36/259,301.21 = 118,975.11/x
  3. Step 3: Cross multiply
    187,879.36x = 259,301.21 × 118,975.11
  4. Step 4: Simplify right side
    187,879.36x = 30,850,390,280.32
  5. Step 5: Solve for x
    x = 30,850,390,280.32/187,879.36
  6. Step 6: Final answer
    x = 164,203.19

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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.