Home / 165,736.65-248,440.95-81,427.80

Finding the Fourth Proportional to 165,736.65, 248,440.95 and 81,427.80

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Solution

The fourth proportional to 165,736.65, 248,440.95 and 81,427.80 is: 122,061.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,736.65 : 248,440.95 = 81,427.80 : x
  2. Step 2: Convert to fraction form
    165,736.65/248,440.95 = 81,427.80/x
  3. Step 3: Cross multiply
    165,736.65x = 248,440.95 × 81,427.80
  4. Step 4: Simplify right side
    165,736.65x = 20,229,999,988.41
  5. Step 5: Solve for x
    x = 20,229,999,988.41/165,736.65
  6. Step 6: Final answer
    x = 122,061.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.