Home / 130,297.44-179,922.69-81,979.93

Finding the Fourth Proportional to 130,297.44, 179,922.69 and 81,979.93

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Solution

The fourth proportional to 130,297.44, 179,922.69 and 81,979.93 is: 113,202.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,297.44 : 179,922.69 = 81,979.93 : x
  2. Step 2: Convert to fraction form
    130,297.44/179,922.69 = 81,979.93/x
  3. Step 3: Cross multiply
    130,297.44x = 179,922.69 × 81,979.93
  4. Step 4: Simplify right side
    130,297.44x = 14,750,049,081.81
  5. Step 5: Solve for x
    x = 14,750,049,081.81/130,297.44
  6. Step 6: Final answer
    x = 113,202.91

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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.