Home / 100,611.19-150,916.23-25,731.21

Finding the Fourth Proportional to 100,611.19, 150,916.23 and 25,731.21

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Solution

The fourth proportional to 100,611.19, 150,916.23 and 25,731.21 is: 38,596.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,611.19 : 150,916.23 = 25,731.21 : x
  2. Step 2: Convert to fraction form
    100,611.19/150,916.23 = 25,731.21/x
  3. Step 3: Cross multiply
    100,611.19x = 150,916.23 × 25,731.21
  4. Step 4: Simplify right side
    100,611.19x = 3,883,257,206.54
  5. Step 5: Solve for x
    x = 3,883,257,206.54/100,611.19
  6. Step 6: Final answer
    x = 38,596.67

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1.5x scale

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.