Home / 105,821.66-146,035.67-58,079.45

Finding the Fourth Proportional to 105,821.66, 146,035.67 and 58,079.45

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Solution

The fourth proportional to 105,821.66, 146,035.67 and 58,079.45 is: 80,150.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,821.66 : 146,035.67 = 58,079.45 : x
  2. Step 2: Convert to fraction form
    105,821.66/146,035.67 = 58,079.45/x
  3. Step 3: Cross multiply
    105,821.66x = 146,035.67 × 58,079.45
  4. Step 4: Simplify right side
    105,821.66x = 8,481,670,373.41
  5. Step 5: Solve for x
    x = 8,481,670,373.41/105,821.66
  6. Step 6: Final answer
    x = 80,150.61

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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.