Home / 130,379.41-179,917.36-80,068.69

Finding the Fourth Proportional to 130,379.41, 179,917.36 and 80,068.69

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Solution

The fourth proportional to 130,379.41, 179,917.36 and 80,068.69 is: 110,490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,379.41 : 179,917.36 = 80,068.69 : x
  2. Step 2: Convert to fraction form
    130,379.41/179,917.36 = 80,068.69/x
  3. Step 3: Cross multiply
    130,379.41x = 179,917.36 × 80,068.69
  4. Step 4: Simplify right side
    130,379.41x = 14,405,747,323.46
  5. Step 5: Solve for x
    x = 14,405,747,323.46/130,379.41
  6. Step 6: Final answer
    x = 110,490.97

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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.