Home / 120,183.77-180,148.52-45,271.51

Finding the Fourth Proportional to 120,183.77, 180,148.52 and 45,271.51

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Solution

The fourth proportional to 120,183.77, 180,148.52 and 45,271.51 is: 67,859.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,183.77 : 180,148.52 = 45,271.51 : x
  2. Step 2: Convert to fraction form
    120,183.77/180,148.52 = 45,271.51/x
  3. Step 3: Cross multiply
    120,183.77x = 180,148.52 × 45,271.51
  4. Step 4: Simplify right side
    120,183.77x = 8,155,595,187.47
  5. Step 5: Solve for x
    x = 8,155,595,187.47/120,183.77
  6. Step 6: Final answer
    x = 67,859.37

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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.