Home / 123,121.24-184,681.86-70,494.28

Finding the Fourth Proportional to 123,121.24, 184,681.86 and 70,494.28

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Solution

The fourth proportional to 123,121.24, 184,681.86 and 70,494.28 is: 105,741.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,121.24 : 184,681.86 = 70,494.28 : x
  2. Step 2: Convert to fraction form
    123,121.24/184,681.86 = 70,494.28/x
  3. Step 3: Cross multiply
    123,121.24x = 184,681.86 × 70,494.28
  4. Step 4: Simplify right side
    123,121.24x = 13,019,014,749.76
  5. Step 5: Solve for x
    x = 13,019,014,749.76/123,121.24
  6. Step 6: Final answer
    x = 105,741.42

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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.