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Finding the Fourth Proportional to 187,879.37, 259,277.15 and 102,991.37

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Solution

The fourth proportional to 187,879.37, 259,277.15 and 102,991.37 is: 142,130.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,879.37 : 259,277.15 = 102,991.37 : x
  2. Step 2: Convert to fraction form
    187,879.37/259,277.15 = 102,991.37/x
  3. Step 3: Cross multiply
    187,879.37x = 259,277.15 × 102,991.37
  4. Step 4: Simplify right side
    187,879.37x = 26,703,307,849.29
  5. Step 5: Solve for x
    x = 26,703,307,849.29/187,879.37
  6. Step 6: Final answer
    x = 142,130.07

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1.5x scale

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.