Home / 106,515,662.40-159,680,181.60-72,326,145.60

Finding the Fourth Proportional to 106,515,662.40, 159,680,181.60 and 72,326,145.60

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Solution

The fourth proportional to 106,515,662.40, 159,680,181.60 and 72,326,145.60 is: 108,425,857.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,515,662.40 : 159,680,181.60 = 72,326,145.60 : x
  2. Step 2: Convert to fraction form
    106,515,662.40/159,680,181.60 = 72,326,145.60/x
  3. Step 3: Cross multiply
    106,515,662.40x = 159,680,181.60 × 72,326,145.60
  4. Step 4: Simplify right side
    106,515,662.40x = 11,549,052,063,836,040
  5. Step 5: Solve for x
    x = 11,549,052,063,836,040/106,515,662.40
  6. Step 6: Final answer
    x = 108,425,857.79

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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.