Home / 123,727.64-170,744.61-67,139.01

Finding the Fourth Proportional to 123,727.64, 170,744.61 and 67,139.01

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Solution

The fourth proportional to 123,727.64, 170,744.61 and 67,139.01 is: 92,652.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,727.64 : 170,744.61 = 67,139.01 : x
  2. Step 2: Convert to fraction form
    123,727.64/170,744.61 = 67,139.01/x
  3. Step 3: Cross multiply
    123,727.64x = 170,744.61 × 67,139.01
  4. Step 4: Simplify right side
    123,727.64x = 11,463,624,078.24
  5. Step 5: Solve for x
    x = 11,463,624,078.24/123,727.64
  6. Step 6: Final answer
    x = 92,652.09

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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.