Finding the Fourth Proportional to 142,102.09, 213,219.61 and 62,129.70
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Solution
The fourth proportional to 142,102.09, 213,219.61 and 62,129.70 is: 93,223.61
Step by Step Solution
- Step 1: Write the proportion equation
142,102.09 : 213,219.61 = 62,129.70 : x - Step 2: Convert to fraction form
142,102.09/213,219.61 = 62,129.70/x - Step 3: Cross multiply
142,102.09x = 213,219.61 × 62,129.70 - Step 4: Simplify right side
142,102.09x = 13,247,270,248.09 - Step 5: Solve for x
x = 13,247,270,248.09/142,102.09 - Step 6: Final answer
x = 93,223.61
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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.