Home / 105,382.46-145,361.30-73,539.74

Finding the Fourth Proportional to 105,382.46, 145,361.30 and 73,539.74

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Solution

The fourth proportional to 105,382.46, 145,361.30 and 73,539.74 is: 101,438.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,382.46 : 145,361.30 = 73,539.74 : x
  2. Step 2: Convert to fraction form
    105,382.46/145,361.30 = 73,539.74/x
  3. Step 3: Cross multiply
    105,382.46x = 145,361.30 × 73,539.74
  4. Step 4: Simplify right side
    105,382.46x = 10,689,832,208.06
  5. Step 5: Solve for x
    x = 10,689,832,208.06/105,382.46
  6. Step 6: Final answer
    x = 101,438.44

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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.