Home / 189,321.21-261,268.70-104,443.74

Finding the Fourth Proportional to 189,321.21, 261,268.70 and 104,443.74

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Solution

The fourth proportional to 189,321.21, 261,268.70 and 104,443.74 is: 144,135.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,321.21 : 261,268.70 = 104,443.74 : x
  2. Step 2: Convert to fraction form
    189,321.21/261,268.70 = 104,443.74/x
  3. Step 3: Cross multiply
    189,321.21x = 261,268.70 × 104,443.74
  4. Step 4: Simplify right side
    189,321.21x = 27,287,879,650.72
  5. Step 5: Solve for x
    x = 27,287,879,650.72/189,321.21
  6. Step 6: Final answer
    x = 144,135.35

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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.