Home / 160,839.59-221,813.33-100,415.79

Finding the Fourth Proportional to 160,839.59, 221,813.33 and 100,415.79

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Solution

The fourth proportional to 160,839.59, 221,813.33 and 100,415.79 is: 138,483.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,839.59 : 221,813.33 = 100,415.79 : x
  2. Step 2: Convert to fraction form
    160,839.59/221,813.33 = 100,415.79/x
  3. Step 3: Cross multiply
    160,839.59x = 221,813.33 × 100,415.79
  4. Step 4: Simplify right side
    160,839.59x = 22,273,560,262.40
  5. Step 5: Solve for x
    x = 22,273,560,262.40/160,839.59
  6. Step 6: Final answer
    x = 138,483.07

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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.