Home / 104,722.20-157,083.30-76,837.95

Finding the Fourth Proportional to 104,722.20, 157,083.30 and 76,837.95

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Solution

The fourth proportional to 104,722.20, 157,083.30 and 76,837.95 is: 115,256.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,722.20 : 157,083.30 = 76,837.95 : x
  2. Step 2: Convert to fraction form
    104,722.20/157,083.30 = 76,837.95/x
  3. Step 3: Cross multiply
    104,722.20x = 157,083.30 × 76,837.95
  4. Step 4: Simplify right side
    104,722.20x = 12,069,958,751.24
  5. Step 5: Solve for x
    x = 12,069,958,751.24/104,722.20
  6. Step 6: Final answer
    x = 115,256.93

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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.