Home / 149,243.22-205,970.16-111,451.86

Finding the Fourth Proportional to 149,243.22, 205,970.16 and 111,451.86

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Solution

The fourth proportional to 149,243.22, 205,970.16 and 111,451.86 is: 153,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,243.22 : 205,970.16 = 111,451.86 : x
  2. Step 2: Convert to fraction form
    149,243.22/205,970.16 = 111,451.86/x
  3. Step 3: Cross multiply
    149,243.22x = 205,970.16 × 111,451.86
  4. Step 4: Simplify right side
    149,243.22x = 22,955,757,436.50
  5. Step 5: Solve for x
    x = 22,955,757,436.50/149,243.22
  6. Step 6: Final answer
    x = 153,814.41

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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.