Home / 111,021.54-153,213.42-60,720.54

Finding the Fourth Proportional to 111,021.54, 153,213.42 and 60,720.54

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Solution

The fourth proportional to 111,021.54, 153,213.42 and 60,720.54 is: 83,796.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,021.54 : 153,213.42 = 60,720.54 : x
  2. Step 2: Convert to fraction form
    111,021.54/153,213.42 = 60,720.54/x
  3. Step 3: Cross multiply
    111,021.54x = 153,213.42 × 60,720.54
  4. Step 4: Simplify right side
    111,021.54x = 9,303,201,597.65
  5. Step 5: Solve for x
    x = 9,303,201,597.65/111,021.54
  6. Step 6: Final answer
    x = 83,796.37

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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.