Home / 188,140.05-259,621.61-103,256.51

Finding the Fourth Proportional to 188,140.05, 259,621.61 and 103,256.51

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Solution

The fourth proportional to 188,140.05, 259,621.61 and 103,256.51 is: 142,487.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,140.05 : 259,621.61 = 103,256.51 : x
  2. Step 2: Convert to fraction form
    188,140.05/259,621.61 = 103,256.51/x
  3. Step 3: Cross multiply
    188,140.05x = 259,621.61 × 103,256.51
  4. Step 4: Simplify right side
    188,140.05x = 26,807,619,554.79
  5. Step 5: Solve for x
    x = 26,807,619,554.79/188,140.05
  6. Step 6: Final answer
    x = 142,487.58

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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.