Finding the Fourth Proportional to 135,827.08, 187,508.82 and 84,868.05
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Solution
The fourth proportional to 135,827.08, 187,508.82 and 84,868.05 is: 117,160.06
Step by Step Solution
- Step 1: Write the proportion equation
135,827.08 : 187,508.82 = 84,868.05 : x - Step 2: Convert to fraction form
135,827.08/187,508.82 = 84,868.05/x - Step 3: Cross multiply
135,827.08x = 187,508.82 × 84,868.05 - Step 4: Simplify right side
135,827.08x = 15,913,508,932.61 - Step 5: Solve for x
x = 15,913,508,932.61/135,827.08 - Step 6: Final answer
x = 117,160.06
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1.5x scale
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.