Finding the Fourth Proportional to 158,903.55, 219,427.45 and 108,104.99
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Solution
The fourth proportional to 158,903.55, 219,427.45 and 108,104.99 is: 149,280.50
Step by Step Solution
- Step 1: Write the proportion equation
158,903.55 : 219,427.45 = 108,104.99 : x - Step 2: Convert to fraction form
158,903.55/219,427.45 = 108,104.99/x - Step 3: Cross multiply
158,903.55x = 219,427.45 × 108,104.99 - Step 4: Simplify right side
158,903.55x = 23,721,200,920.58 - Step 5: Solve for x
x = 23,721,200,920.58/158,903.55 - Step 6: Final answer
x = 149,280.50
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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.