Home / 158,620.48-218,899.26-87,004.13

Finding the Fourth Proportional to 158,620.48, 218,899.26 and 87,004.13

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Solution

The fourth proportional to 158,620.48, 218,899.26 and 87,004.13 is: 120,067.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,620.48 : 218,899.26 = 87,004.13 : x
  2. Step 2: Convert to fraction form
    158,620.48/218,899.26 = 87,004.13/x
  3. Step 3: Cross multiply
    158,620.48x = 218,899.26 × 87,004.13
  4. Step 4: Simplify right side
    158,620.48x = 19,045,138,579.45
  5. Step 5: Solve for x
    x = 19,045,138,579.45/158,620.48
  6. Step 6: Final answer
    x = 120,067.34

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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.