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Finding the Fourth Proportional to 147,119.60, 220,679.40 and 88,137.20

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Solution

The fourth proportional to 147,119.60, 220,679.40 and 88,137.20 is: 132,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,119.60 : 220,679.40 = 88,137.20 : x
  2. Step 2: Convert to fraction form
    147,119.60/220,679.40 = 88,137.20/x
  3. Step 3: Cross multiply
    147,119.60x = 220,679.40 × 88,137.20
  4. Step 4: Simplify right side
    147,119.60x = 19,450,064,413.68
  5. Step 5: Solve for x
    x = 19,450,064,413.68/147,119.60
  6. Step 6: Final answer
    x = 132,205.80

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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.