Home / 120,893,720.20-166,837,240.50-68,681,806.60

Finding the Fourth Proportional to 120,893,720.20, 166,837,240.50 and 68,681,806.60

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Solution

The fourth proportional to 120,893,720.20, 166,837,240.50 and 68,681,806.60 is: 94,783,112.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,893,720.20 : 166,837,240.50 = 68,681,806.60 : x
  2. Step 2: Convert to fraction form
    120,893,720.20/166,837,240.50 = 68,681,806.60/x
  3. Step 3: Cross multiply
    120,893,720.20x = 166,837,240.50 × 68,681,806.60
  4. Step 4: Simplify right side
    120,893,720.20x = 11,458,683,085,698,686
  5. Step 5: Solve for x
    x = 11,458,683,085,698,686/120,893,720.20
  6. Step 6: Final answer
    x = 94,783,112.53

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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.