Finding the Fourth Proportional to 161,869.80, 242,804.70 and 83,137.80
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Solution
The fourth proportional to 161,869.80, 242,804.70 and 83,137.80 is: 124,706.70
Step by Step Solution
- Step 1: Write the proportion equation
161,869.80 : 242,804.70 = 83,137.80 : x - Step 2: Convert to fraction form
161,869.80/242,804.70 = 83,137.80/x - Step 3: Cross multiply
161,869.80x = 242,804.70 × 83,137.80 - Step 4: Simplify right side
161,869.80x = 20,186,248,587.66 - Step 5: Solve for x
x = 20,186,248,587.66/161,869.80 - Step 6: Final answer
x = 124,706.70
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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.