Home / 189,664.18-261,754.67-103,636.24

Finding the Fourth Proportional to 189,664.18, 261,754.67 and 103,636.24

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Solution

The fourth proportional to 189,664.18, 261,754.67 and 103,636.24 is: 143,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,664.18 : 261,754.67 = 103,636.24 : x
  2. Step 2: Convert to fraction form
    189,664.18/261,754.67 = 103,636.24/x
  3. Step 3: Cross multiply
    189,664.18x = 261,754.67 × 103,636.24
  4. Step 4: Simplify right side
    189,664.18x = 27,127,269,801.24
  5. Step 5: Solve for x
    x = 27,127,269,801.24/189,664.18
  6. Step 6: Final answer
    x = 143,027.90

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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.