Finding the Fourth Proportional to 135,803.82, 187,407.86 and 75,374.99
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Solution
The fourth proportional to 135,803.82, 187,407.86 and 75,374.99 is: 104,016.70
Step by Step Solution
- Step 1: Write the proportion equation
135,803.82 : 187,407.86 = 75,374.99 : x - Step 2: Convert to fraction form
135,803.82/187,407.86 = 75,374.99/x - Step 3: Cross multiply
135,803.82x = 187,407.86 × 75,374.99 - Step 4: Simplify right side
135,803.82x = 14,125,865,386.27 - Step 5: Solve for x
x = 14,125,865,386.27/135,803.82 - Step 6: Final answer
x = 104,016.70
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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.