Finding the Fourth Proportional to 157,088.60, 235,554.28 and 78,246.44
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Solution
The fourth proportional to 157,088.60, 235,554.28 and 78,246.44 is: 117,330.50
Step by Step Solution
- Step 1: Write the proportion equation
157,088.60 : 235,554.28 = 78,246.44 : x - Step 2: Convert to fraction form
157,088.60/235,554.28 = 78,246.44/x - Step 3: Cross multiply
157,088.60x = 235,554.28 × 78,246.44 - Step 4: Simplify right side
157,088.60x = 18,431,283,836.76 - Step 5: Solve for x
x = 18,431,283,836.76/157,088.60 - Step 6: Final answer
x = 117,330.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.