Home / 138,896.01-191,674.82-84,430.14

Finding the Fourth Proportional to 138,896.01, 191,674.82 and 84,430.14

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Solution

The fourth proportional to 138,896.01, 191,674.82 and 84,430.14 is: 116,512.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,896.01 : 191,674.82 = 84,430.14 : x
  2. Step 2: Convert to fraction form
    138,896.01/191,674.82 = 84,430.14/x
  3. Step 3: Cross multiply
    138,896.01x = 191,674.82 × 84,430.14
  4. Step 4: Simplify right side
    138,896.01x = 16,183,131,464.92
  5. Step 5: Solve for x
    x = 16,183,131,464.92/138,896.01
  6. Step 6: Final answer
    x = 116,512.57

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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.