Finding the Fourth Proportional to 137,202.09, 205,840.08 and 70,605.92
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Solution
The fourth proportional to 137,202.09, 205,840.08 and 70,605.92 is: 105,927.88
Step by Step Solution
- Step 1: Write the proportion equation
137,202.09 : 205,840.08 = 70,605.92 : x - Step 2: Convert to fraction form
137,202.09/205,840.08 = 70,605.92/x - Step 3: Cross multiply
137,202.09x = 205,840.08 × 70,605.92 - Step 4: Simplify right side
137,202.09x = 14,533,527,192.07 - Step 5: Solve for x
x = 14,533,527,192.07/137,202.09 - Step 6: Final answer
x = 105,927.88
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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.