Home / 120,281,629.89-165,964,640.67-73,207,172.96

Finding the Fourth Proportional to 120,281,629.89, 165,964,640.67 and 73,207,172.96

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Solution

The fourth proportional to 120,281,629.89, 165,964,640.67 and 73,207,172.96 is: 101,011,286.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,281,629.89 : 165,964,640.67 = 73,207,172.96 : x
  2. Step 2: Convert to fraction form
    120,281,629.89/165,964,640.67 = 73,207,172.96/x
  3. Step 3: Cross multiply
    120,281,629.89x = 165,964,640.67 × 73,207,172.96
  4. Step 4: Simplify right side
    120,281,629.89x = 12,149,802,154,772,938
  5. Step 5: Solve for x
    x = 12,149,802,154,772,938/120,281,629.89
  6. Step 6: Final answer
    x = 101,011,286.31

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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.