Home / 158,629.12-218,863.80-102,073.28

Finding the Fourth Proportional to 158,629.12, 218,863.80 and 102,073.28

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Solution

The fourth proportional to 158,629.12, 218,863.80 and 102,073.28 is: 140,832.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,629.12 : 218,863.80 = 102,073.28 : x
  2. Step 2: Convert to fraction form
    158,629.12/218,863.80 = 102,073.28/x
  3. Step 3: Cross multiply
    158,629.12x = 218,863.80 × 102,073.28
  4. Step 4: Simplify right side
    158,629.12x = 22,340,145,939.26
  5. Step 5: Solve for x
    x = 22,340,145,939.26/158,629.12
  6. Step 6: Final answer
    x = 140,832.57

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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.