Home / 211,611.12-317,435.13-69,413.75

Finding the Fourth Proportional to 211,611.12, 317,435.13 and 69,413.75

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Solution

The fourth proportional to 211,611.12, 317,435.13 and 69,413.75 is: 104,126.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,611.12 : 317,435.13 = 69,413.75 : x
  2. Step 2: Convert to fraction form
    211,611.12/317,435.13 = 69,413.75/x
  3. Step 3: Cross multiply
    211,611.12x = 317,435.13 × 69,413.75
  4. Step 4: Simplify right side
    211,611.12x = 22,034,361,167.86
  5. Step 5: Solve for x
    x = 22,034,361,167.86/211,611.12
  6. Step 6: Final answer
    x = 104,126.67

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1.5x scale

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.