Home / 112,410.20-168,611.40-28,171.10

Finding the Fourth Proportional to 112,410.20, 168,611.40 and 28,171.10

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Solution

The fourth proportional to 112,410.20, 168,611.40 and 28,171.10 is: 42,255.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,410.20 : 168,611.40 = 28,171.10 : x
  2. Step 2: Convert to fraction form
    112,410.20/168,611.40 = 28,171.10/x
  3. Step 3: Cross multiply
    112,410.20x = 168,611.40 × 28,171.10
  4. Step 4: Simplify right side
    112,410.20x = 4,749,967,767.48
  5. Step 5: Solve for x
    x = 4,749,967,767.48/112,410.20
  6. Step 6: Final answer
    x = 42,255.67

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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.