Home / 136,717.22-188,665.34-74,625.32

Finding the Fourth Proportional to 136,717.22, 188,665.34 and 74,625.32

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Solution

The fourth proportional to 136,717.22, 188,665.34 and 74,625.32 is: 102,980.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,717.22 : 188,665.34 = 74,625.32 : x
  2. Step 2: Convert to fraction form
    136,717.22/188,665.34 = 74,625.32/x
  3. Step 3: Cross multiply
    136,717.22x = 188,665.34 × 74,625.32
  4. Step 4: Simplify right side
    136,717.22x = 14,079,211,468.95
  5. Step 5: Solve for x
    x = 14,079,211,468.95/136,717.22
  6. Step 6: Final answer
    x = 102,980.53

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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.