Home / 109,912.44-151,685.04-69,611.40

Finding the Fourth Proportional to 109,912.44, 151,685.04 and 69,611.40

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Solution

The fourth proportional to 109,912.44, 151,685.04 and 69,611.40 is: 96,067.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,912.44 : 151,685.04 = 69,611.40 : x
  2. Step 2: Convert to fraction form
    109,912.44/151,685.04 = 69,611.40/x
  3. Step 3: Cross multiply
    109,912.44x = 151,685.04 × 69,611.40
  4. Step 4: Simplify right side
    109,912.44x = 10,559,007,993.46
  5. Step 5: Solve for x
    x = 10,559,007,993.46/109,912.44
  6. Step 6: Final answer
    x = 96,067.45

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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.