Home / 211,413.03-291,747.87-115,919.49

Finding the Fourth Proportional to 211,413.03, 291,747.87 and 115,919.49

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Solution

The fourth proportional to 211,413.03, 291,747.87 and 115,919.49 is: 159,967.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,413.03 : 291,747.87 = 115,919.49 : x
  2. Step 2: Convert to fraction form
    211,413.03/291,747.87 = 115,919.49/x
  3. Step 3: Cross multiply
    211,413.03x = 291,747.87 × 115,919.49
  4. Step 4: Simplify right side
    211,413.03x = 33,819,264,298.99
  5. Step 5: Solve for x
    x = 33,819,264,298.99/211,413.03
  6. Step 6: Final answer
    x = 159,967.74

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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.