Home / 150,399.48-207,825-143,111.64

Finding the Fourth Proportional to 150,399.48, 207,825 and 143,111.64

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Solution

The fourth proportional to 150,399.48, 207,825 and 143,111.64 is: 197,754.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,399.48 : 207,825 = 143,111.64 : x
  2. Step 2: Convert to fraction form
    150,399.48/207,825 = 143,111.64/x
  3. Step 3: Cross multiply
    150,399.48x = 207,825 × 143,111.64
  4. Step 4: Simplify right side
    150,399.48x = 29,742,176,583.00
  5. Step 5: Solve for x
    x = 29,742,176,583.00/150,399.48
  6. Step 6: Final answer
    x = 197,754.52

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1.5x scale

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.