Home / 187,800.72-259,171.64-102,917.79

Finding the Fourth Proportional to 187,800.72, 259,171.64 and 102,917.79

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Solution

The fourth proportional to 187,800.72, 259,171.64 and 102,917.79 is: 142,030.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,800.72 : 259,171.64 = 102,917.79 : x
  2. Step 2: Convert to fraction form
    187,800.72/259,171.64 = 102,917.79/x
  3. Step 3: Cross multiply
    187,800.72x = 259,171.64 × 102,917.79
  4. Step 4: Simplify right side
    187,800.72x = 26,673,371,904.89
  5. Step 5: Solve for x
    x = 26,673,371,904.89/187,800.72
  6. Step 6: Final answer
    x = 142,030.19

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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.