Home / 421,968.08-632,930.16-106,427.72

Finding the Fourth Proportional to 421,968.08, 632,930.16 and 106,427.72

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Solution

The fourth proportional to 421,968.08, 632,930.16 and 106,427.72 is: 159,636.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,968.08 : 632,930.16 = 106,427.72 : x
  2. Step 2: Convert to fraction form
    421,968.08/632,930.16 = 106,427.72/x
  3. Step 3: Cross multiply
    421,968.08x = 632,930.16 × 106,427.72
  4. Step 4: Simplify right side
    421,968.08x = 67,361,313,848.04
  5. Step 5: Solve for x
    x = 67,361,313,848.04/421,968.08
  6. Step 6: Final answer
    x = 159,636.04

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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.