Finding the Fourth Proportional to 137,567.80, 189,853.38 and 76,334.08
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Solution
The fourth proportional to 137,567.80, 189,853.38 and 76,334.08 is: 105,346.48
Step by Step Solution
- Step 1: Write the proportion equation
137,567.80 : 189,853.38 = 76,334.08 : x - Step 2: Convert to fraction form
137,567.80/189,853.38 = 76,334.08/x - Step 3: Cross multiply
137,567.80x = 189,853.38 × 76,334.08 - Step 4: Simplify right side
137,567.80x = 14,492,283,097.19 - Step 5: Solve for x
x = 14,492,283,097.19/137,567.80 - Step 6: Final answer
x = 105,346.48
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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.