Home / 111,127.12-166,645.76-40,990.80

Finding the Fourth Proportional to 111,127.12, 166,645.76 and 40,990.80

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Solution

The fourth proportional to 111,127.12, 166,645.76 and 40,990.80 is: 61,469.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,127.12 : 166,645.76 = 40,990.80 : x
  2. Step 2: Convert to fraction form
    111,127.12/166,645.76 = 40,990.80/x
  3. Step 3: Cross multiply
    111,127.12x = 166,645.76 × 40,990.80
  4. Step 4: Simplify right side
    111,127.12x = 6,830,943,019.01
  5. Step 5: Solve for x
    x = 6,830,943,019.01/111,127.12
  6. Step 6: Final answer
    x = 61,469.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.