Finding the Fourth Proportional to 137,681.10, 206,533.95 and 42,912.09
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Solution
The fourth proportional to 137,681.10, 206,533.95 and 42,912.09 is: 64,371.96
Step by Step Solution
- Step 1: Write the proportion equation
137,681.10 : 206,533.95 = 42,912.09 : x - Step 2: Convert to fraction form
137,681.10/206,533.95 = 42,912.09/x - Step 3: Cross multiply
137,681.10x = 206,533.95 × 42,912.09 - Step 4: Simplify right side
137,681.10x = 8,862,802,203.23 - Step 5: Solve for x
x = 8,862,802,203.23/137,681.10 - Step 6: Final answer
x = 64,371.96
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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.