Home / 188,163.96-259,667.10-103,281.72

Finding the Fourth Proportional to 188,163.96, 259,667.10 and 103,281.72

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Solution

The fourth proportional to 188,163.96, 259,667.10 and 103,281.72 is: 142,529.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,163.96 : 259,667.10 = 103,281.72 : x
  2. Step 2: Convert to fraction form
    188,163.96/259,667.10 = 103,281.72/x
  3. Step 3: Cross multiply
    188,163.96x = 259,667.10 × 103,281.72
  4. Step 4: Simplify right side
    188,163.96x = 26,818,864,715.41
  5. Step 5: Solve for x
    x = 26,818,864,715.41/188,163.96
  6. Step 6: Final answer
    x = 142,529.23

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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.