Home / 190,419.72-262,779.42-105,536.85

Finding the Fourth Proportional to 190,419.72, 262,779.42 and 105,536.85

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Solution

The fourth proportional to 190,419.72, 262,779.42 and 105,536.85 is: 145,640.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,419.72 : 262,779.42 = 105,536.85 : x
  2. Step 2: Convert to fraction form
    190,419.72/262,779.42 = 105,536.85/x
  3. Step 3: Cross multiply
    190,419.72x = 262,779.42 × 105,536.85
  4. Step 4: Simplify right side
    190,419.72x = 27,732,912,231.63
  5. Step 5: Solve for x
    x = 27,732,912,231.63/190,419.72
  6. Step 6: Final answer
    x = 145,640.97

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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.