Finding the Fourth Proportional to 135,564.29, 187,078.57 and 75,135.05
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Solution
The fourth proportional to 135,564.29, 187,078.57 and 75,135.05 is: 103,686.28
Step by Step Solution
- Step 1: Write the proportion equation
135,564.29 : 187,078.57 = 75,135.05 : x - Step 2: Convert to fraction form
135,564.29/187,078.57 = 75,135.05/x - Step 3: Cross multiply
135,564.29x = 187,078.57 × 75,135.05 - Step 4: Simplify right side
135,564.29x = 14,056,156,587.65 - Step 5: Solve for x
x = 14,056,156,587.65/135,564.29 - Step 6: Final answer
x = 103,686.28
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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.