Home / 190,111.86-262,354.14-109,542.78

Finding the Fourth Proportional to 190,111.86, 262,354.14 and 109,542.78

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Solution

The fourth proportional to 190,111.86, 262,354.14 and 109,542.78 is: 151,168.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,111.86 : 262,354.14 = 109,542.78 : x
  2. Step 2: Convert to fraction form
    190,111.86/262,354.14 = 109,542.78/x
  3. Step 3: Cross multiply
    190,111.86x = 262,354.14 × 109,542.78
  4. Step 4: Simplify right side
    190,111.86x = 28,739,001,840.11
  5. Step 5: Solve for x
    x = 28,739,001,840.11/190,111.86
  6. Step 6: Final answer
    x = 151,168.91

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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.