Home / 105,891.06-146,129.22-58,144.80

Finding the Fourth Proportional to 105,891.06, 146,129.22 and 58,144.80

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Solution

The fourth proportional to 105,891.06, 146,129.22 and 58,144.80 is: 80,239.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,891.06 : 146,129.22 = 58,144.80 : x
  2. Step 2: Convert to fraction form
    105,891.06/146,129.22 = 58,144.80/x
  3. Step 3: Cross multiply
    105,891.06x = 146,129.22 × 58,144.80
  4. Step 4: Simplify right side
    105,891.06x = 8,496,654,271.06
  5. Step 5: Solve for x
    x = 8,496,654,271.06/105,891.06
  6. Step 6: Final answer
    x = 80,239.58

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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.