Home / 145,976.36-218,972.35-46,128.96

Finding the Fourth Proportional to 145,976.36, 218,972.35 and 46,128.96

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Solution

The fourth proportional to 145,976.36, 218,972.35 and 46,128.96 is: 69,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,976.36 : 218,972.35 = 46,128.96 : x
  2. Step 2: Convert to fraction form
    145,976.36/218,972.35 = 46,128.96/x
  3. Step 3: Cross multiply
    145,976.36x = 218,972.35 × 46,128.96
  4. Step 4: Simplify right side
    145,976.36x = 10,100,965,843.26
  5. Step 5: Solve for x
    x = 10,100,965,843.26/145,976.36
  6. Step 6: Final answer
    x = 69,195.90

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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.