Home / 189,774.69-261,888.57-108,102.93

Finding the Fourth Proportional to 189,774.69, 261,888.57 and 108,102.93

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Solution

The fourth proportional to 189,774.69, 261,888.57 and 108,102.93 is: 149,181.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,774.69 : 261,888.57 = 108,102.93 : x
  2. Step 2: Convert to fraction form
    189,774.69/261,888.57 = 108,102.93/x
  3. Step 3: Cross multiply
    189,774.69x = 261,888.57 × 108,102.93
  4. Step 4: Simplify right side
    189,774.69x = 28,310,921,750.51
  5. Step 5: Solve for x
    x = 28,310,921,750.51/189,774.69
  6. Step 6: Final answer
    x = 149,181.76

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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.