Finding the Fourth Proportional to 161,810.70, 242,629.65 and 68,210.70
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Solution
The fourth proportional to 161,810.70, 242,629.65 and 68,210.70 is: 102,279.63
Step by Step Solution
- Step 1: Write the proportion equation
161,810.70 : 242,629.65 = 68,210.70 : x - Step 2: Convert to fraction form
161,810.70/242,629.65 = 68,210.70/x - Step 3: Cross multiply
161,810.70x = 242,629.65 × 68,210.70 - Step 4: Simplify right side
161,810.70x = 16,549,938,267.26 - Step 5: Solve for x
x = 16,549,938,267.26/161,810.70 - Step 6: Final answer
x = 102,279.63
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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.