Finding the Fourth Proportional to 136,178.07, 187,925.72 and 76,562.07
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Solution
The fourth proportional to 136,178.07, 187,925.72 and 76,562.07 is: 105,655.65
Step by Step Solution
- Step 1: Write the proportion equation
136,178.07 : 187,925.72 = 76,562.07 : x - Step 2: Convert to fraction form
136,178.07/187,925.72 = 76,562.07/x - Step 3: Cross multiply
136,178.07x = 187,925.72 × 76,562.07 - Step 4: Simplify right side
136,178.07x = 14,387,982,129.44 - Step 5: Solve for x
x = 14,387,982,129.44/136,178.07 - Step 6: Final answer
x = 105,655.65
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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.