Finding the Fourth Proportional to 161,908.60, 242,603.70 and 102,638.20
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Solution
The fourth proportional to 161,908.60, 242,603.70 and 102,638.20 is: 153,792.99
Step by Step Solution
- Step 1: Write the proportion equation
161,908.60 : 242,603.70 = 102,638.20 : x - Step 2: Convert to fraction form
161,908.60/242,603.70 = 102,638.20/x - Step 3: Cross multiply
161,908.60x = 242,603.70 × 102,638.20 - Step 4: Simplify right side
161,908.60x = 24,900,407,081.34 - Step 5: Solve for x
x = 24,900,407,081.34/161,908.60 - Step 6: Final answer
x = 153,792.99
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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.