Finding the Fourth Proportional to 135,398.68, 186,851.66 and 74,970.42
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Solution
The fourth proportional to 135,398.68, 186,851.66 and 74,970.42 is: 103,460.00
Step by Step Solution
- Step 1: Write the proportion equation
135,398.68 : 186,851.66 = 74,970.42 : x - Step 2: Convert to fraction form
135,398.68/186,851.66 = 74,970.42/x - Step 3: Cross multiply
135,398.68x = 186,851.66 × 74,970.42 - Step 4: Simplify right side
135,398.68x = 14,008,347,427.90 - Step 5: Solve for x
x = 14,008,347,427.90/135,398.68 - Step 6: Final answer
x = 103,460.00
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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.