Home / 211,063.06-291,239.94-120,413.80

Finding the Fourth Proportional to 211,063.06, 291,239.94 and 120,413.80

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Solution

The fourth proportional to 211,063.06, 291,239.94 and 120,413.80 is: 166,155.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,063.06 : 291,239.94 = 120,413.80 : x
  2. Step 2: Convert to fraction form
    211,063.06/291,239.94 = 120,413.80/x
  3. Step 3: Cross multiply
    211,063.06x = 291,239.94 × 120,413.80
  4. Step 4: Simplify right side
    211,063.06x = 35,069,307,887.17
  5. Step 5: Solve for x
    x = 35,069,307,887.17/211,063.06
  6. Step 6: Final answer
    x = 166,155.59

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1.5x scale

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.