Home / 149,251.22-205,981.20-111,459.86

Finding the Fourth Proportional to 149,251.22, 205,981.20 and 111,459.86

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Solution

The fourth proportional to 149,251.22, 205,981.20 and 111,459.86 is: 153,825.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,251.22 : 205,981.20 = 111,459.86 : x
  2. Step 2: Convert to fraction form
    149,251.22/205,981.20 = 111,459.86/x
  3. Step 3: Cross multiply
    149,251.22x = 205,981.20 × 111,459.86
  4. Step 4: Simplify right side
    149,251.22x = 22,958,635,714.63
  5. Step 5: Solve for x
    x = 22,958,635,714.63/149,251.22
  6. Step 6: Final answer
    x = 153,825.45

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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.