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Finding the Fourth Proportional to 188,113.72, 259,600.10 and 103,238.68

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Solution

The fourth proportional to 188,113.72, 259,600.10 and 103,238.68 is: 142,471.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,113.72 : 259,600.10 = 103,238.68 : x
  2. Step 2: Convert to fraction form
    188,113.72/259,600.10 = 103,238.68/x
  3. Step 3: Cross multiply
    188,113.72x = 259,600.10 × 103,238.68
  4. Step 4: Simplify right side
    188,113.72x = 26,800,771,651.87
  5. Step 5: Solve for x
    x = 26,800,771,651.87/188,113.72
  6. Step 6: Final answer
    x = 142,471.12

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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.