Home / 120,557.21-180,794.24-49,459.77

Finding the Fourth Proportional to 120,557.21, 180,794.24 and 49,459.77

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Solution

The fourth proportional to 120,557.21, 180,794.24 and 49,459.77 is: 74,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,557.21 : 180,794.24 = 49,459.77 : x
  2. Step 2: Convert to fraction form
    120,557.21/180,794.24 = 49,459.77/x
  3. Step 3: Cross multiply
    120,557.21x = 180,794.24 × 49,459.77
  4. Step 4: Simplify right side
    120,557.21x = 8,942,041,280.43
  5. Step 5: Solve for x
    x = 8,942,041,280.43/120,557.21
  6. Step 6: Final answer
    x = 74,172.60

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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.