Home / 100,725.28-151,091.28-30,604.36

Finding the Fourth Proportional to 100,725.28, 151,091.28 and 30,604.36

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Solution

The fourth proportional to 100,725.28, 151,091.28 and 30,604.36 is: 45,907.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,725.28 : 151,091.28 = 30,604.36 : x
  2. Step 2: Convert to fraction form
    100,725.28/151,091.28 = 30,604.36/x
  3. Step 3: Cross multiply
    100,725.28x = 151,091.28 × 30,604.36
  4. Step 4: Simplify right side
    100,725.28x = 4,624,051,925.98
  5. Step 5: Solve for x
    x = 4,624,051,925.98/100,725.28
  6. Step 6: Final answer
    x = 45,907.56

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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.