Home / 147,622-221,284.96-76,504.81

Finding the Fourth Proportional to 147,622, 221,284.96 and 76,504.81

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Solution

The fourth proportional to 147,622, 221,284.96 and 76,504.81 is: 114,680.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,622 : 221,284.96 = 76,504.81 : x
  2. Step 2: Convert to fraction form
    147,622/221,284.96 = 76,504.81/x
  3. Step 3: Cross multiply
    147,622x = 221,284.96 × 76,504.81
  4. Step 4: Simplify right side
    147,622x = 16,929,363,820.66
  5. Step 5: Solve for x
    x = 16,929,363,820.66/147,622
  6. Step 6: Final answer
    x = 114,680.49

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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.