Finding the Fourth Proportional to 135,291.08, 186,754.02 and 121,119.32
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Solution
The fourth proportional to 135,291.08, 186,754.02 and 121,119.32 is: 167,191.51
Step by Step Solution
- Step 1: Write the proportion equation
135,291.08 : 186,754.02 = 121,119.32 : x - Step 2: Convert to fraction form
135,291.08/186,754.02 = 121,119.32/x - Step 3: Cross multiply
135,291.08x = 186,754.02 × 121,119.32 - Step 4: Simplify right side
135,291.08x = 22,619,519,909.67 - Step 5: Solve for x
x = 22,619,519,909.67/135,291.08 - Step 6: Final answer
x = 167,191.51
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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.