Finding the Fourth Proportional to 135,444.18, 202,342.59 and 87,670.08
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Solution
The fourth proportional to 135,444.18, 202,342.59 and 87,670.08 is: 130,971.97
Step by Step Solution
- Step 1: Write the proportion equation
135,444.18 : 202,342.59 = 87,670.08 : x - Step 2: Convert to fraction form
135,444.18/202,342.59 = 87,670.08/x - Step 3: Cross multiply
135,444.18x = 202,342.59 × 87,670.08 - Step 4: Simplify right side
135,444.18x = 17,739,391,052.71 - Step 5: Solve for x
x = 17,739,391,052.71/135,444.18 - Step 6: Final answer
x = 130,971.97
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.