Home / 123,172.20-184,742.37-38,940.84

Finding the Fourth Proportional to 123,172.20, 184,742.37 and 38,940.84

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Solution

The fourth proportional to 123,172.20, 184,742.37 and 38,940.84 is: 58,406.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,172.20 : 184,742.37 = 38,940.84 : x
  2. Step 2: Convert to fraction form
    123,172.20/184,742.37 = 38,940.84/x
  3. Step 3: Cross multiply
    123,172.20x = 184,742.37 × 38,940.84
  4. Step 4: Simplify right side
    123,172.20x = 7,194,023,071.39
  5. Step 5: Solve for x
    x = 7,194,023,071.39/123,172.20
  6. Step 6: Final answer
    x = 58,406.22

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1.5x scale

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.