Home / 217,020.15-325,530.23-133,039.35

Finding the Fourth Proportional to 217,020.15, 325,530.23 and 133,039.35

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Solution

The fourth proportional to 217,020.15, 325,530.23 and 133,039.35 is: 199,559.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,020.15 : 325,530.23 = 133,039.35 : x
  2. Step 2: Convert to fraction form
    217,020.15/325,530.23 = 133,039.35/x
  3. Step 3: Cross multiply
    217,020.15x = 325,530.23 × 133,039.35
  4. Step 4: Simplify right side
    217,020.15x = 43,308,329,539.35
  5. Step 5: Solve for x
    x = 43,308,329,539.35/217,020.15
  6. Step 6: Final answer
    x = 199,559.03

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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.