Finding the Fourth Proportional to 135,804.94, 187,407.21 and 75,374.02
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Solution
The fourth proportional to 135,804.94, 187,407.21 and 75,374.02 is: 104,014.15
Step by Step Solution
- Step 1: Write the proportion equation
135,804.94 : 187,407.21 = 75,374.02 : x - Step 2: Convert to fraction form
135,804.94/187,407.21 = 75,374.02/x - Step 3: Cross multiply
135,804.94x = 187,407.21 × 75,374.02 - Step 4: Simplify right side
135,804.94x = 14,125,634,794.68 - Step 5: Solve for x
x = 14,125,634,794.68/135,804.94 - Step 6: Final answer
x = 104,014.15
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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.