Home / 149,016.08-205,631.88-88,583.60

Finding the Fourth Proportional to 149,016.08, 205,631.88 and 88,583.60

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Solution

The fourth proportional to 149,016.08, 205,631.88 and 88,583.60 is: 122,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,016.08 : 205,631.88 = 88,583.60 : x
  2. Step 2: Convert to fraction form
    149,016.08/205,631.88 = 88,583.60/x
  3. Step 3: Cross multiply
    149,016.08x = 205,631.88 × 88,583.60
  4. Step 4: Simplify right side
    149,016.08x = 18,215,612,205.17
  5. Step 5: Solve for x
    x = 18,215,612,205.17/149,016.08
  6. Step 6: Final answer
    x = 122,239.24

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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.