Home / 149,133.36-205,735.98-88,669.60

Finding the Fourth Proportional to 149,133.36, 205,735.98 and 88,669.60

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Solution

The fourth proportional to 149,133.36, 205,735.98 and 88,669.60 is: 122,323.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,133.36 : 205,735.98 = 88,669.60 : x
  2. Step 2: Convert to fraction form
    149,133.36/205,735.98 = 88,669.60/x
  3. Step 3: Cross multiply
    149,133.36x = 205,735.98 × 88,669.60
  4. Step 4: Simplify right side
    149,133.36x = 18,242,526,870.38
  5. Step 5: Solve for x
    x = 18,242,526,870.38/149,133.36
  6. Step 6: Final answer
    x = 122,323.58

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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.