Home / 105,881.36-146,116.53-58,137.79

Finding the Fourth Proportional to 105,881.36, 146,116.53 and 58,137.79

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Solution

The fourth proportional to 105,881.36, 146,116.53 and 58,137.79 is: 80,230.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,881.36 : 146,116.53 = 58,137.79 : x
  2. Step 2: Convert to fraction form
    105,881.36/146,116.53 = 58,137.79/x
  3. Step 3: Cross multiply
    105,881.36x = 146,116.53 × 58,137.79
  4. Step 4: Simplify right side
    105,881.36x = 8,494,892,136.67
  5. Step 5: Solve for x
    x = 8,494,892,136.67/105,881.36
  6. Step 6: Final answer
    x = 80,230.29

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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.