Home / 115,739.01-159,789.51-75,522.51

Finding the Fourth Proportional to 115,739.01, 159,789.51 and 75,522.51

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Solution

The fourth proportional to 115,739.01, 159,789.51 and 75,522.51 is: 104,266.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,739.01 : 159,789.51 = 75,522.51 : x
  2. Step 2: Convert to fraction form
    115,739.01/159,789.51 = 75,522.51/x
  3. Step 3: Cross multiply
    115,739.01x = 159,789.51 × 75,522.51
  4. Step 4: Simplify right side
    115,739.01x = 12,067,704,866.87
  5. Step 5: Solve for x
    x = 12,067,704,866.87/115,739.01
  6. Step 6: Final answer
    x = 104,266.53

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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.