Home / 123,741.82-170,634.63-73,431.10

Finding the Fourth Proportional to 123,741.82, 170,634.63 and 73,431.10

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Solution

The fourth proportional to 123,741.82, 170,634.63 and 73,431.10 is: 101,258.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,741.82 : 170,634.63 = 73,431.10 : x
  2. Step 2: Convert to fraction form
    123,741.82/170,634.63 = 73,431.10/x
  3. Step 3: Cross multiply
    123,741.82x = 170,634.63 × 73,431.10
  4. Step 4: Simplify right side
    123,741.82x = 12,529,888,578.99
  5. Step 5: Solve for x
    x = 12,529,888,578.99/123,741.82
  6. Step 6: Final answer
    x = 101,258.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.