Home / 117,471.24-162,036.56-69,690.75

Finding the Fourth Proportional to 117,471.24, 162,036.56 and 69,690.75

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Solution

The fourth proportional to 117,471.24, 162,036.56 and 69,690.75 is: 96,129.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,471.24 : 162,036.56 = 69,690.75 : x
  2. Step 2: Convert to fraction form
    117,471.24/162,036.56 = 69,690.75/x
  3. Step 3: Cross multiply
    117,471.24x = 162,036.56 × 69,690.75
  4. Step 4: Simplify right side
    117,471.24x = 11,292,449,045.37
  5. Step 5: Solve for x
    x = 11,292,449,045.37/117,471.24
  6. Step 6: Final answer
    x = 96,129.48

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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.