Finding the Fourth Proportional to 135,657.24, 187,168.74 and 106,887.68
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Solution
The fourth proportional to 135,657.24, 187,168.74 and 106,887.68 is: 147,474.86
Step by Step Solution
- Step 1: Write the proportion equation
135,657.24 : 187,168.74 = 106,887.68 : x - Step 2: Convert to fraction form
135,657.24/187,168.74 = 106,887.68/x - Step 3: Cross multiply
135,657.24x = 187,168.74 × 106,887.68 - Step 4: Simplify right side
135,657.24x = 20,006,032,387.12 - Step 5: Solve for x
x = 20,006,032,387.12/135,657.24 - Step 6: Final answer
x = 147,474.86
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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.