Home / 111,009.48-166,436.34-40,879.80

Finding the Fourth Proportional to 111,009.48, 166,436.34 and 40,879.80

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Solution

The fourth proportional to 111,009.48, 166,436.34 and 40,879.80 is: 61,291.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,009.48 : 166,436.34 = 40,879.80 : x
  2. Step 2: Convert to fraction form
    111,009.48/166,436.34 = 40,879.80/x
  3. Step 3: Cross multiply
    111,009.48x = 166,436.34 × 40,879.80
  4. Step 4: Simplify right side
    111,009.48x = 6,803,884,291.93
  5. Step 5: Solve for x
    x = 6,803,884,291.93/111,009.48
  6. Step 6: Final answer
    x = 61,291.02

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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.