Home / 211,975.65-317,464.92-99,413.19

Finding the Fourth Proportional to 211,975.65, 317,464.92 and 99,413.19

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Solution

The fourth proportional to 211,975.65, 317,464.92 and 99,413.19 is: 148,885.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,975.65 : 317,464.92 = 99,413.19 : x
  2. Step 2: Convert to fraction form
    211,975.65/317,464.92 = 99,413.19/x
  3. Step 3: Cross multiply
    211,975.65x = 317,464.92 × 99,413.19
  4. Step 4: Simplify right side
    211,975.65x = 31,560,200,410.29
  5. Step 5: Solve for x
    x = 31,560,200,410.29/211,975.65
  6. Step 6: Final answer
    x = 148,885.97

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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.