Home / 212,986.62-293,911.65-122,278.77

Finding the Fourth Proportional to 212,986.62, 293,911.65 and 122,278.77

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Solution

The fourth proportional to 212,986.62, 293,911.65 and 122,278.77 is: 168,739.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,986.62 : 293,911.65 = 122,278.77 : x
  2. Step 2: Convert to fraction form
    212,986.62/293,911.65 = 122,278.77/x
  3. Step 3: Cross multiply
    212,986.62x = 293,911.65 × 122,278.77
  4. Step 4: Simplify right side
    212,986.62x = 35,939,155,050.67
  5. Step 5: Solve for x
    x = 35,939,155,050.67/212,986.62
  6. Step 6: Final answer
    x = 168,739.03

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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.