Home / 189,212.16-261,109.44-104,336.96

Finding the Fourth Proportional to 189,212.16, 261,109.44 and 104,336.96

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Solution

The fourth proportional to 189,212.16, 261,109.44 and 104,336.96 is: 143,983.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,212.16 : 261,109.44 = 104,336.96 : x
  2. Step 2: Convert to fraction form
    189,212.16/261,109.44 = 104,336.96/x
  3. Step 3: Cross multiply
    189,212.16x = 261,109.44 × 104,336.96
  4. Step 4: Simplify right side
    189,212.16x = 27,243,365,196.90
  5. Step 5: Solve for x
    x = 27,243,365,196.90/189,212.16
  6. Step 6: Final answer
    x = 143,983.16

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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.