Finding the Fourth Proportional to 135,826.93, 187,432.27 and 75,394.63
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Solution
The fourth proportional to 135,826.93, 187,432.27 and 75,394.63 is: 104,039.65
Step by Step Solution
- Step 1: Write the proportion equation
135,826.93 : 187,432.27 = 75,394.63 : x - Step 2: Convert to fraction form
135,826.93/187,432.27 = 75,394.63/x - Step 3: Cross multiply
135,826.93x = 187,432.27 × 75,394.63 - Step 4: Simplify right side
135,826.93x = 14,131,386,646.71 - Step 5: Solve for x
x = 14,131,386,646.71/135,826.93 - Step 6: Final answer
x = 104,039.65
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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.