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Finding the Fourth Proportional to 188,295.45, 259,847.43 and 103,412.52

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Solution

The fourth proportional to 188,295.45, 259,847.43 and 103,412.52 is: 142,709.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,295.45 : 259,847.43 = 103,412.52 : x
  2. Step 2: Convert to fraction form
    188,295.45/259,847.43 = 103,412.52/x
  3. Step 3: Cross multiply
    188,295.45x = 259,847.43 × 103,412.52
  4. Step 4: Simplify right side
    188,295.45x = 26,871,477,551.82
  5. Step 5: Solve for x
    x = 26,871,477,551.82/188,295.45
  6. Step 6: Final answer
    x = 142,709.12

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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.