Home / 149,157.05-205,845.91-85,504.41

Finding the Fourth Proportional to 149,157.05, 205,845.91 and 85,504.41

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Solution

The fourth proportional to 149,157.05, 205,845.91 and 85,504.41 is: 118,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,157.05 : 205,845.91 = 85,504.41 : x
  2. Step 2: Convert to fraction form
    149,157.05/205,845.91 = 85,504.41/x
  3. Step 3: Cross multiply
    149,157.05x = 205,845.91 × 85,504.41
  4. Step 4: Simplify right side
    149,157.05x = 17,600,732,871.70
  5. Step 5: Solve for x
    x = 17,600,732,871.70/149,157.05
  6. Step 6: Final answer
    x = 118,001.35

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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.