Home / 122,205.04-168,653.82-71,215

Finding the Fourth Proportional to 122,205.04, 168,653.82 and 71,215

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Solution

The fourth proportional to 122,205.04, 168,653.82 and 71,215 is: 98,283.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,205.04 : 168,653.82 = 71,215 : x
  2. Step 2: Convert to fraction form
    122,205.04/168,653.82 = 71,215/x
  3. Step 3: Cross multiply
    122,205.04x = 168,653.82 × 71,215
  4. Step 4: Simplify right side
    122,205.04x = 12,010,681,791.30
  5. Step 5: Solve for x
    x = 12,010,681,791.30/122,205.04
  6. Step 6: Final answer
    x = 98,283.03

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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.