Finding the Fourth Proportional to 135,541.35, 187,038.60 and 75,108.47
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Solution
The fourth proportional to 135,541.35, 187,038.60 and 75,108.47 is: 103,644.99
Step by Step Solution
- Step 1: Write the proportion equation
135,541.35 : 187,038.60 = 75,108.47 : x - Step 2: Convert to fraction form
135,541.35/187,038.60 = 75,108.47/x - Step 3: Cross multiply
135,541.35x = 187,038.60 × 75,108.47 - Step 4: Simplify right side
135,541.35x = 14,048,182,141.75 - Step 5: Solve for x
x = 14,048,182,141.75/135,541.35 - Step 6: Final answer
x = 103,644.99
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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.