Home / 122,395.82-169,013.94-76,534.06

Finding the Fourth Proportional to 122,395.82, 169,013.94 and 76,534.06

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Solution

The fourth proportional to 122,395.82, 169,013.94 and 76,534.06 is: 105,684.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,395.82 : 169,013.94 = 76,534.06 : x
  2. Step 2: Convert to fraction form
    122,395.82/169,013.94 = 76,534.06/x
  3. Step 3: Cross multiply
    122,395.82x = 169,013.94 × 76,534.06
  4. Step 4: Simplify right side
    122,395.82x = 12,935,323,024.80
  5. Step 5: Solve for x
    x = 12,935,323,024.80/122,395.82
  6. Step 6: Final answer
    x = 105,684.35

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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.