Home / 144,722.96-199,721.58-81,059.36

Finding the Fourth Proportional to 144,722.96, 199,721.58 and 81,059.36

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Solution

The fourth proportional to 144,722.96, 199,721.58 and 81,059.36 is: 111,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,722.96 : 199,721.58 = 81,059.36 : x
  2. Step 2: Convert to fraction form
    144,722.96/199,721.58 = 81,059.36/x
  3. Step 3: Cross multiply
    144,722.96x = 199,721.58 × 81,059.36
  4. Step 4: Simplify right side
    144,722.96x = 16,189,303,452.99
  5. Step 5: Solve for x
    x = 16,189,303,452.99/144,722.96
  6. Step 6: Final answer
    x = 111,864.10

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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.