Home / 106,655.32-159,742.41-82,772.07

Finding the Fourth Proportional to 106,655.32, 159,742.41 and 82,772.07

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Solution

The fourth proportional to 106,655.32, 159,742.41 and 82,772.07 is: 123,971.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,655.32 : 159,742.41 = 82,772.07 : x
  2. Step 2: Convert to fraction form
    106,655.32/159,742.41 = 82,772.07/x
  3. Step 3: Cross multiply
    106,655.32x = 159,742.41 × 82,772.07
  4. Step 4: Simplify right side
    106,655.32x = 13,222,209,942.49
  5. Step 5: Solve for x
    x = 13,222,209,942.49/106,655.32
  6. Step 6: Final answer
    x = 123,971.41

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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.