Home / 220,986.69-304,961.58-120,384.69

Finding the Fourth Proportional to 220,986.69, 304,961.58 and 120,384.69

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Solution

The fourth proportional to 220,986.69, 304,961.58 and 120,384.69 is: 166,130.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,986.69 : 304,961.58 = 120,384.69 : x
  2. Step 2: Convert to fraction form
    220,986.69/304,961.58 = 120,384.69/x
  3. Step 3: Cross multiply
    220,986.69x = 304,961.58 × 120,384.69
  4. Step 4: Simplify right side
    220,986.69x = 36,712,705,270.21
  5. Step 5: Solve for x
    x = 36,712,705,270.21/220,986.69
  6. Step 6: Final answer
    x = 166,130.84

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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.