Finding the Fourth Proportional to 135,559.99, 187,072.80 and 75,134.53
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Solution
The fourth proportional to 135,559.99, 187,072.80 and 75,134.53 is: 103,685.66
Step by Step Solution
- Step 1: Write the proportion equation
135,559.99 : 187,072.80 = 75,134.53 : x - Step 2: Convert to fraction form
135,559.99/187,072.80 = 75,134.53/x - Step 3: Cross multiply
135,559.99x = 187,072.80 × 75,134.53 - Step 4: Simplify right side
135,559.99x = 14,055,626,436.10 - Step 5: Solve for x
x = 14,055,626,436.10/135,559.99 - Step 6: Final answer
x = 103,685.66
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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.