Finding the Fourth Proportional to 122,291.40, 183,437.10 and 88,830.30
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Solution
The fourth proportional to 122,291.40, 183,437.10 and 88,830.30 is: 133,245.45
Step by Step Solution
- Step 1: Write the proportion equation
122,291.40 : 183,437.10 = 88,830.30 : x - Step 2: Convert to fraction form
122,291.40/183,437.10 = 88,830.30/x - Step 3: Cross multiply
122,291.40x = 183,437.10 × 88,830.30 - Step 4: Simplify right side
122,291.40x = 16,294,772,624.13 - Step 5: Solve for x
x = 16,294,772,624.13/122,291.40 - Step 6: Final answer
x = 133,245.45
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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.