Finding the Fourth Proportional to 70,990.05, 106,302.96 and 68,887.83
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Solution
The fourth proportional to 70,990.05, 106,302.96 and 68,887.83 is: 103,155.02
Step by Step Solution
- Step 1: Write the proportion equation
70,990.05 : 106,302.96 = 68,887.83 : x - Step 2: Convert to fraction form
70,990.05/106,302.96 = 68,887.83/x - Step 3: Cross multiply
70,990.05x = 106,302.96 × 68,887.83 - Step 4: Simplify right side
70,990.05x = 7,322,980,236.98 - Step 5: Solve for x
x = 7,322,980,236.98/70,990.05 - Step 6: Final answer
x = 103,155.02
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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.