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Finding the Fourth Proportional to 188,160.96, 259,662.96 and 103,278.72

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Solution

The fourth proportional to 188,160.96, 259,662.96 and 103,278.72 is: 142,525.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,160.96 : 259,662.96 = 103,278.72 : x
  2. Step 2: Convert to fraction form
    188,160.96/259,662.96 = 103,278.72/x
  3. Step 3: Cross multiply
    188,160.96x = 259,662.96 × 103,278.72
  4. Step 4: Simplify right side
    188,160.96x = 26,817,658,140.21
  5. Step 5: Solve for x
    x = 26,817,658,140.21/188,160.96
  6. Step 6: Final answer
    x = 142,525.09

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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.