Finding the Fourth Proportional to 135,374.58, 186,869.25 and 121,202.82
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Solution
The fourth proportional to 135,374.58, 186,869.25 and 121,202.82 is: 167,306.74
Step by Step Solution
- Step 1: Write the proportion equation
135,374.58 : 186,869.25 = 121,202.82 : x - Step 2: Convert to fraction form
135,374.58/186,869.25 = 121,202.82/x - Step 3: Cross multiply
135,374.58x = 186,869.25 × 121,202.82 - Step 4: Simplify right side
135,374.58x = 22,649,080,071.29 - Step 5: Solve for x
x = 22,649,080,071.29/135,374.58 - Step 6: Final answer
x = 167,306.74
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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.