Finding the Fourth Proportional to 137,152.04, 189,285.49 and 76,737.98
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Solution
The fourth proportional to 137,152.04, 189,285.49 and 76,737.98 is: 105,907.19
Step by Step Solution
- Step 1: Write the proportion equation
137,152.04 : 189,285.49 = 76,737.98 : x - Step 2: Convert to fraction form
137,152.04/189,285.49 = 76,737.98/x - Step 3: Cross multiply
137,152.04x = 189,285.49 × 76,737.98 - Step 4: Simplify right side
137,152.04x = 14,525,386,715.05 - Step 5: Solve for x
x = 14,525,386,715.05/137,152.04 - Step 6: Final answer
x = 105,907.19
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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.