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Finding the Fourth Proportional to 188,220.96, 259,736.76 and 103,339.44

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Solution

The fourth proportional to 188,220.96, 259,736.76 and 103,339.44 is: 142,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,220.96 : 259,736.76 = 103,339.44 : x
  2. Step 2: Convert to fraction form
    188,220.96/259,736.76 = 103,339.44/x
  3. Step 3: Cross multiply
    188,220.96x = 259,736.76 × 103,339.44
  4. Step 4: Simplify right side
    188,220.96x = 26,841,051,325.81
  5. Step 5: Solve for x
    x = 26,841,051,325.81/188,220.96
  6. Step 6: Final answer
    x = 142,603.94

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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.