Finding the Fourth Proportional to 99,124.98, 136,759.14 and 56,653.44
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Solution
The fourth proportional to 99,124.98, 136,759.14 and 56,653.44 is: 78,162.70
Step by Step Solution
- Step 1: Write the proportion equation
99,124.98 : 136,759.14 = 56,653.44 : x - Step 2: Convert to fraction form
99,124.98/136,759.14 = 56,653.44/x - Step 3: Cross multiply
99,124.98x = 136,759.14 × 56,653.44 - Step 4: Simplify right side
99,124.98x = 7,747,875,732.44 - Step 5: Solve for x
x = 7,747,875,732.44/99,124.98 - Step 6: Final answer
x = 78,162.70
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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.