Home / 190,961.36-286,372.92-91,117.52

Finding the Fourth Proportional to 190,961.36, 286,372.92 and 91,117.52

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Solution

The fourth proportional to 190,961.36, 286,372.92 and 91,117.52 is: 136,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,961.36 : 286,372.92 = 91,117.52 : x
  2. Step 2: Convert to fraction form
    190,961.36/286,372.92 = 91,117.52/x
  3. Step 3: Cross multiply
    190,961.36x = 286,372.92 × 91,117.52
  4. Step 4: Simplify right side
    190,961.36x = 26,093,590,265.56
  5. Step 5: Solve for x
    x = 26,093,590,265.56/190,961.36
  6. Step 6: Final answer
    x = 136,643.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.