Finding the Fourth Proportional to 135,689.76, 203,528.75 and 45,726.53
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Solution
The fourth proportional to 135,689.76, 203,528.75 and 45,726.53 is: 68,587.80
Step by Step Solution
- Step 1: Write the proportion equation
135,689.76 : 203,528.75 = 45,726.53 : x - Step 2: Convert to fraction form
135,689.76/203,528.75 = 45,726.53/x - Step 3: Cross multiply
135,689.76x = 203,528.75 × 45,726.53 - Step 4: Simplify right side
135,689.76x = 9,306,662,503.67 - Step 5: Solve for x
x = 9,306,662,503.67/135,689.76 - Step 6: Final answer
x = 68,587.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.