Finding the Fourth Proportional to 117,459.98, 162,229.36 and 77,353.02
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Solution
The fourth proportional to 117,459.98, 162,229.36 and 77,353.02 is: 106,835.80
Step by Step Solution
- Step 1: Write the proportion equation
117,459.98 : 162,229.36 = 77,353.02 : x - Step 2: Convert to fraction form
117,459.98/162,229.36 = 77,353.02/x - Step 3: Cross multiply
117,459.98x = 162,229.36 × 77,353.02 - Step 4: Simplify right side
117,459.98x = 12,548,930,928.67 - Step 5: Solve for x
x = 12,548,930,928.67/117,459.98 - Step 6: Final answer
x = 106,835.80
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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.