Home / 105,904.89-158,879.19-31,027.47

Finding the Fourth Proportional to 105,904.89, 158,879.19 and 31,027.47

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Solution

The fourth proportional to 105,904.89, 158,879.19 and 31,027.47 is: 46,547.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,904.89 : 158,879.19 = 31,027.47 : x
  2. Step 2: Convert to fraction form
    105,904.89/158,879.19 = 31,027.47/x
  3. Step 3: Cross multiply
    105,904.89x = 158,879.19 × 31,027.47
  4. Step 4: Simplify right side
    105,904.89x = 4,929,619,301.35
  5. Step 5: Solve for x
    x = 4,929,619,301.35/105,904.89
  6. Step 6: Final answer
    x = 46,547.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.