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Finding the Fourth Proportional to 161,643.44, 223,059.48 and 90,022.16

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Solution

The fourth proportional to 161,643.44, 223,059.48 and 90,022.16 is: 124,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,643.44 : 223,059.48 = 90,022.16 : x
  2. Step 2: Convert to fraction form
    161,643.44/223,059.48 = 90,022.16/x
  3. Step 3: Cross multiply
    161,643.44x = 223,059.48 × 90,022.16
  4. Step 4: Simplify right side
    161,643.44x = 20,080,296,198.08
  5. Step 5: Solve for x
    x = 20,080,296,198.08/161,643.44
  6. Step 6: Final answer
    x = 124,225.87

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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.