Finding the Fourth Proportional to 144,355.80, 216,533.70 and 91,211.70
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Solution
The fourth proportional to 144,355.80, 216,533.70 and 91,211.70 is: 136,817.55
Step by Step Solution
- Step 1: Write the proportion equation
144,355.80 : 216,533.70 = 91,211.70 : x - Step 2: Convert to fraction form
144,355.80/216,533.70 = 91,211.70/x - Step 3: Cross multiply
144,355.80x = 216,533.70 × 91,211.70 - Step 4: Simplify right side
144,355.80x = 19,750,406,884.29 - Step 5: Solve for x
x = 19,750,406,884.29/144,355.80 - Step 6: Final answer
x = 136,817.55
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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.