Home / 122,747.04-169,292.16-82,448.64

Finding the Fourth Proportional to 122,747.04, 169,292.16 and 82,448.64

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Solution

The fourth proportional to 122,747.04, 169,292.16 and 82,448.64 is: 113,712.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,747.04 : 169,292.16 = 82,448.64 : x
  2. Step 2: Convert to fraction form
    122,747.04/169,292.16 = 82,448.64/x
  3. Step 3: Cross multiply
    122,747.04x = 169,292.16 × 82,448.64
  4. Step 4: Simplify right side
    122,747.04x = 13,957,908,354.66
  5. Step 5: Solve for x
    x = 13,957,908,354.66/122,747.04
  6. Step 6: Final answer
    x = 113,712.79

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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.