Home / 106,391.07-146,879.61-70,629.96

Finding the Fourth Proportional to 106,391.07, 146,879.61 and 70,629.96

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Solution

The fourth proportional to 106,391.07, 146,879.61 and 70,629.96 is: 97,509.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,391.07 : 146,879.61 = 70,629.96 : x
  2. Step 2: Convert to fraction form
    106,391.07/146,879.61 = 70,629.96/x
  3. Step 3: Cross multiply
    106,391.07x = 146,879.61 × 70,629.96
  4. Step 4: Simplify right side
    106,391.07x = 10,374,100,979.12
  5. Step 5: Solve for x
    x = 10,374,100,979.12/106,391.07
  6. Step 6: Final answer
    x = 97,509.13

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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.