Home / 121,583.48-167,788.04-76,263.38

Finding the Fourth Proportional to 121,583.48, 167,788.04 and 76,263.38

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Solution

The fourth proportional to 121,583.48, 167,788.04 and 76,263.38 is: 105,245.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,583.48 : 167,788.04 = 76,263.38 : x
  2. Step 2: Convert to fraction form
    121,583.48/167,788.04 = 76,263.38/x
  3. Step 3: Cross multiply
    121,583.48x = 167,788.04 × 76,263.38
  4. Step 4: Simplify right side
    121,583.48x = 12,796,083,053.98
  5. Step 5: Solve for x
    x = 12,796,083,053.98/121,583.48
  6. Step 6: Final answer
    x = 105,245.24

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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.