Home / 120,367.77-180,581.64-36,129.50

Finding the Fourth Proportional to 120,367.77, 180,581.64 and 36,129.50

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Solution

The fourth proportional to 120,367.77, 180,581.64 and 36,129.50 is: 54,203.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,367.77 : 180,581.64 = 36,129.50 : x
  2. Step 2: Convert to fraction form
    120,367.77/180,581.64 = 36,129.50/x
  3. Step 3: Cross multiply
    120,367.77x = 180,581.64 × 36,129.50
  4. Step 4: Simplify right side
    120,367.77x = 6,524,323,459.47
  5. Step 5: Solve for x
    x = 6,524,323,459.47/120,367.77
  6. Step 6: Final answer
    x = 54,203.24

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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.