Home / 103,476,072.80-155,214,109.20-71,227,445.60

Finding the Fourth Proportional to 103,476,072.80, 155,214,109.20 and 71,227,445.60

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Solution

The fourth proportional to 103,476,072.80, 155,214,109.20 and 71,227,445.60 is: 106,841,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,476,072.80 : 155,214,109.20 = 71,227,445.60 : x
  2. Step 2: Convert to fraction form
    103,476,072.80/155,214,109.20 = 71,227,445.60/x
  3. Step 3: Cross multiply
    103,476,072.80x = 155,214,109.20 × 71,227,445.60
  4. Step 4: Simplify right side
    103,476,072.80x = 11,055,504,519,395,458
  5. Step 5: Solve for x
    x = 11,055,504,519,395,458/103,476,072.80
  6. Step 6: Final answer
    x = 106,841,168.40

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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.