Home / 123,266.40-170,108.31-68,821.03

Finding the Fourth Proportional to 123,266.40, 170,108.31 and 68,821.03

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Solution

The fourth proportional to 123,266.40, 170,108.31 and 68,821.03 is: 94,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,266.40 : 170,108.31 = 68,821.03 : x
  2. Step 2: Convert to fraction form
    123,266.40/170,108.31 = 68,821.03/x
  3. Step 3: Cross multiply
    123,266.40x = 170,108.31 × 68,821.03
  4. Step 4: Simplify right side
    123,266.40x = 11,707,029,105.76
  5. Step 5: Solve for x
    x = 11,707,029,105.76/123,266.40
  6. Step 6: Final answer
    x = 94,973.40

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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.