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Finding the Fourth Proportional to 188,361.72, 259,955.46 and 103,495.05

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Solution

The fourth proportional to 188,361.72, 259,955.46 and 103,495.05 is: 142,832.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,361.72 : 259,955.46 = 103,495.05 : x
  2. Step 2: Convert to fraction form
    188,361.72/259,955.46 = 103,495.05/x
  3. Step 3: Cross multiply
    188,361.72x = 259,955.46 × 103,495.05
  4. Step 4: Simplify right side
    188,361.72x = 26,904,103,330.47
  5. Step 5: Solve for x
    x = 26,904,103,330.47/188,361.72
  6. Step 6: Final answer
    x = 142,832.12

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1.5x scale

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.