Home / 336,739.10-505,107.23-84,019.30

Finding the Fourth Proportional to 336,739.10, 505,107.23 and 84,019.30

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Solution

The fourth proportional to 336,739.10, 505,107.23 and 84,019.30 is: 126,028.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,739.10 : 505,107.23 = 84,019.30 : x
  2. Step 2: Convert to fraction form
    336,739.10/505,107.23 = 84,019.30/x
  3. Step 3: Cross multiply
    336,739.10x = 505,107.23 × 84,019.30
  4. Step 4: Simplify right side
    336,739.10x = 42,438,754,206.67
  5. Step 5: Solve for x
    x = 42,438,754,206.67/336,739.10
  6. Step 6: Final answer
    x = 126,028.59

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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.