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Finding the Fourth Proportional to 188,894, 260,673.72 and 104,010.86

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Solution

The fourth proportional to 188,894, 260,673.72 and 104,010.86 is: 143,534.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,894 : 260,673.72 = 104,010.86 : x
  2. Step 2: Convert to fraction form
    188,894/260,673.72 = 104,010.86/x
  3. Step 3: Cross multiply
    188,894x = 260,673.72 × 104,010.86
  4. Step 4: Simplify right side
    188,894x = 27,112,897,796.60
  5. Step 5: Solve for x
    x = 27,112,897,796.60/188,894
  6. Step 6: Final answer
    x = 143,534.99

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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.