Finding the Fourth Proportional to 135,558.63, 187,070.93 and 75,133.18
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Solution
The fourth proportional to 135,558.63, 187,070.93 and 75,133.18 is: 103,683.80
Step by Step Solution
- Step 1: Write the proportion equation
135,558.63 : 187,070.93 = 75,133.18 : x - Step 2: Convert to fraction form
135,558.63/187,070.93 = 75,133.18/x - Step 3: Cross multiply
135,558.63x = 187,070.93 × 75,133.18 - Step 4: Simplify right side
135,558.63x = 14,055,233,576.61 - Step 5: Solve for x
x = 14,055,233,576.61/135,558.63 - Step 6: Final answer
x = 103,683.80
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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.