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Finding the Fourth Proportional to 188,364.34, 259,941.72 and 103,479.58

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Solution

The fourth proportional to 188,364.34, 259,941.72 and 103,479.58 is: 142,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,364.34 : 259,941.72 = 103,479.58 : x
  2. Step 2: Convert to fraction form
    188,364.34/259,941.72 = 103,479.58/x
  3. Step 3: Cross multiply
    188,364.34x = 259,941.72 × 103,479.58
  4. Step 4: Simplify right side
    188,364.34x = 26,898,660,010.08
  5. Step 5: Solve for x
    x = 26,898,660,010.08/188,364.34
  6. Step 6: Final answer
    x = 142,801.23

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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.