Home / 123,226.50-170,052.57-66,637.88

Finding the Fourth Proportional to 123,226.50, 170,052.57 and 66,637.88

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Solution

The fourth proportional to 123,226.50, 170,052.57 and 66,637.88 is: 91,960.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,226.50 : 170,052.57 = 66,637.88 : x
  2. Step 2: Convert to fraction form
    123,226.50/170,052.57 = 66,637.88/x
  3. Step 3: Cross multiply
    123,226.50x = 170,052.57 × 66,637.88
  4. Step 4: Simplify right side
    123,226.50x = 11,331,941,903.09
  5. Step 5: Solve for x
    x = 11,331,941,903.09/123,226.50
  6. Step 6: Final answer
    x = 91,960.27

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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.