Finding the Fourth Proportional to 131,639.60, 197,257.80 and 98,202.80
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Solution
The fourth proportional to 131,639.60, 197,257.80 and 98,202.80 is: 147,153.81
Step by Step Solution
- Step 1: Write the proportion equation
131,639.60 : 197,257.80 = 98,202.80 : x - Step 2: Convert to fraction form
131,639.60/197,257.80 = 98,202.80/x - Step 3: Cross multiply
131,639.60x = 197,257.80 × 98,202.80 - Step 4: Simplify right side
131,639.60x = 19,371,268,281.84 - Step 5: Solve for x
x = 19,371,268,281.84/131,639.60 - Step 6: Final answer
x = 147,153.81
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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.