Home / 105,811.23-146,021.32-58,069.02

Finding the Fourth Proportional to 105,811.23, 146,021.32 and 58,069.02

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Solution

The fourth proportional to 105,811.23, 146,021.32 and 58,069.02 is: 80,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,811.23 : 146,021.32 = 58,069.02 : x
  2. Step 2: Convert to fraction form
    105,811.23/146,021.32 = 58,069.02/x
  3. Step 3: Cross multiply
    105,811.23x = 146,021.32 × 58,069.02
  4. Step 4: Simplify right side
    105,811.23x = 8,479,314,661.16
  5. Step 5: Solve for x
    x = 8,479,314,661.16/105,811.23
  6. Step 6: Final answer
    x = 80,136.25

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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.