Home / 122,069.16-168,444-71,079.66

Finding the Fourth Proportional to 122,069.16, 168,444 and 71,079.66

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Solution

The fourth proportional to 122,069.16, 168,444 and 71,079.66 is: 98,083.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,069.16 : 168,444 = 71,079.66 : x
  2. Step 2: Convert to fraction form
    122,069.16/168,444 = 71,079.66/x
  3. Step 3: Cross multiply
    122,069.16x = 168,444 × 71,079.66
  4. Step 4: Simplify right side
    122,069.16x = 11,972,942,249.04
  5. Step 5: Solve for x
    x = 11,972,942,249.04/122,069.16
  6. Step 6: Final answer
    x = 98,083.27

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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.