Home / 122,751.12-169,398.38-74,994.34

Finding the Fourth Proportional to 122,751.12, 169,398.38 and 74,994.34

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Solution

The fourth proportional to 122,751.12, 169,398.38 and 74,994.34 is: 103,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,751.12 : 169,398.38 = 74,994.34 : x
  2. Step 2: Convert to fraction form
    122,751.12/169,398.38 = 74,994.34/x
  3. Step 3: Cross multiply
    122,751.12x = 169,398.38 × 74,994.34
  4. Step 4: Simplify right side
    122,751.12x = 12,703,919,705.17
  5. Step 5: Solve for x
    x = 12,703,919,705.17/122,751.12
  6. Step 6: Final answer
    x = 103,493.31

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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.