Home / 120,526.35-180,611.34-113,786.47

Finding the Fourth Proportional to 120,526.35, 180,611.34 and 113,786.47

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Solution

The fourth proportional to 120,526.35, 180,611.34 and 113,786.47 is: 170,511.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,526.35 : 180,611.34 = 113,786.47 : x
  2. Step 2: Convert to fraction form
    120,526.35/180,611.34 = 113,786.47/x
  3. Step 3: Cross multiply
    120,526.35x = 180,611.34 × 113,786.47
  4. Step 4: Simplify right side
    120,526.35x = 20,551,126,619.63
  5. Step 5: Solve for x
    x = 20,551,126,619.63/120,526.35
  6. Step 6: Final answer
    x = 170,511.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.