Home / 100,405.22-150,509.91-47,800.58

Finding the Fourth Proportional to 100,405.22, 150,509.91 and 47,800.58

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Solution

The fourth proportional to 100,405.22, 150,509.91 and 47,800.58 is: 71,654.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,405.22 : 150,509.91 = 47,800.58 : x
  2. Step 2: Convert to fraction form
    100,405.22/150,509.91 = 47,800.58/x
  3. Step 3: Cross multiply
    100,405.22x = 150,509.91 × 47,800.58
  4. Step 4: Simplify right side
    100,405.22x = 7,194,460,993.75
  5. Step 5: Solve for x
    x = 7,194,460,993.75/100,405.22
  6. Step 6: Final answer
    x = 71,654.25

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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.