Home / 187,976.29-259,423.68-103,109.75

Finding the Fourth Proportional to 187,976.29, 259,423.68 and 103,109.75

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Solution

The fourth proportional to 187,976.29, 259,423.68 and 103,109.75 is: 142,300.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,976.29 : 259,423.68 = 103,109.75 : x
  2. Step 2: Convert to fraction form
    187,976.29/259,423.68 = 103,109.75/x
  3. Step 3: Cross multiply
    187,976.29x = 259,423.68 × 103,109.75
  4. Step 4: Simplify right side
    187,976.29x = 26,749,111,630.77
  5. Step 5: Solve for x
    x = 26,749,111,630.77/187,976.29
  6. Step 6: Final answer
    x = 142,300.46

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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.