Finding the Fourth Proportional to 158,969.36, 219,377.67 and 87,353.99
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Solution
The fourth proportional to 158,969.36, 219,377.67 and 87,353.99 is: 120,548.48
Step by Step Solution
- Step 1: Write the proportion equation
158,969.36 : 219,377.67 = 87,353.99 : x - Step 2: Convert to fraction form
158,969.36/219,377.67 = 87,353.99/x - Step 3: Cross multiply
158,969.36x = 219,377.67 × 87,353.99 - Step 4: Simplify right side
158,969.36x = 19,163,515,423.60 - Step 5: Solve for x
x = 19,163,515,423.60/158,969.36 - Step 6: Final answer
x = 120,548.48
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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.