Home / 189,662.18-261,751.91-103,634.24

Finding the Fourth Proportional to 189,662.18, 261,751.91 and 103,634.24

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Solution

The fourth proportional to 189,662.18, 261,751.91 and 103,634.24 is: 143,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,662.18 : 261,751.91 = 103,634.24 : x
  2. Step 2: Convert to fraction form
    189,662.18/261,751.91 = 103,634.24/x
  3. Step 3: Cross multiply
    189,662.18x = 261,751.91 × 103,634.24
  4. Step 4: Simplify right side
    189,662.18x = 27,126,460,643.00
  5. Step 5: Solve for x
    x = 27,126,460,643.00/189,662.18
  6. Step 6: Final answer
    x = 143,025.14

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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.