Finding the Fourth Proportional to 99,364.36, 137,122.14 and 56,351.96
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Solution
The fourth proportional to 99,364.36, 137,122.14 and 56,351.96 is: 77,765.32
Step by Step Solution
- Step 1: Write the proportion equation
99,364.36 : 137,122.14 = 56,351.96 : x - Step 2: Convert to fraction form
99,364.36/137,122.14 = 56,351.96/x - Step 3: Cross multiply
99,364.36x = 137,122.14 × 56,351.96 - Step 4: Simplify right side
99,364.36x = 7,727,101,348.39 - Step 5: Solve for x
x = 7,727,101,348.39/99,364.36 - Step 6: Final answer
x = 77,765.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.