Home / 123,431.72-170,334.50-69,716.56

Finding the Fourth Proportional to 123,431.72, 170,334.50 and 69,716.56

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Solution

The fourth proportional to 123,431.72, 170,334.50 and 69,716.56 is: 96,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,431.72 : 170,334.50 = 69,716.56 : x
  2. Step 2: Convert to fraction form
    123,431.72/170,334.50 = 69,716.56/x
  3. Step 3: Cross multiply
    123,431.72x = 170,334.50 × 69,716.56
  4. Step 4: Simplify right side
    123,431.72x = 11,875,135,389.32
  5. Step 5: Solve for x
    x = 11,875,135,389.32/123,431.72
  6. Step 6: Final answer
    x = 96,208.13

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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.