Home / 105,811.51-146,021.67-58,069.30

Finding the Fourth Proportional to 105,811.51, 146,021.67 and 58,069.30

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Solution

The fourth proportional to 105,811.51, 146,021.67 and 58,069.30 is: 80,136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,811.51 : 146,021.67 = 58,069.30 : x
  2. Step 2: Convert to fraction form
    105,811.51/146,021.67 = 58,069.30/x
  3. Step 3: Cross multiply
    105,811.51x = 146,021.67 × 58,069.30
  4. Step 4: Simplify right side
    105,811.51x = 8,479,376,161.73
  5. Step 5: Solve for x
    x = 8,479,376,161.73/105,811.51
  6. Step 6: Final answer
    x = 80,136.61

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1.5x scale

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.