Finding the Fourth Proportional to 103,243.08, 142,458.18 and 60,810.06
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Solution
The fourth proportional to 103,243.08, 142,458.18 and 60,810.06 is: 83,907.71
Step by Step Solution
- Step 1: Write the proportion equation
103,243.08 : 142,458.18 = 60,810.06 : x - Step 2: Convert to fraction form
103,243.08/142,458.18 = 60,810.06/x - Step 3: Cross multiply
103,243.08x = 142,458.18 × 60,810.06 - Step 4: Simplify right side
103,243.08x = 8,662,890,473.29 - Step 5: Solve for x
x = 8,662,890,473.29/103,243.08 - Step 6: Final answer
x = 83,907.71
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1.5x scale
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.