Home / 189,200.86-261,092.28-103,161.44

Finding the Fourth Proportional to 189,200.86, 261,092.28 and 103,161.44

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Solution

The fourth proportional to 189,200.86, 261,092.28 and 103,161.44 is: 142,360.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,200.86 : 261,092.28 = 103,161.44 : x
  2. Step 2: Convert to fraction form
    189,200.86/261,092.28 = 103,161.44/x
  3. Step 3: Cross multiply
    189,200.86x = 261,092.28 × 103,161.44
  4. Step 4: Simplify right side
    189,200.86x = 26,934,655,577.68
  5. Step 5: Solve for x
    x = 26,934,655,577.68/189,200.86
  6. Step 6: Final answer
    x = 142,360.11

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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.