Finding the Fourth Proportional to 135,540.97, 187,038.08 and 75,108.08
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Solution
The fourth proportional to 135,540.97, 187,038.08 and 75,108.08 is: 103,644.47
Step by Step Solution
- Step 1: Write the proportion equation
135,540.97 : 187,038.08 = 75,108.08 : x - Step 2: Convert to fraction form
135,540.97/187,038.08 = 75,108.08/x - Step 3: Cross multiply
135,540.97x = 187,038.08 × 75,108.08 - Step 4: Simplify right side
135,540.97x = 14,048,071,449.40 - Step 5: Solve for x
x = 14,048,071,449.40/135,540.97 - Step 6: Final answer
x = 103,644.47
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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.