Finding the Fourth Proportional to 118,509.62, 163,652.40 and 76,141.96
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Solution
The fourth proportional to 118,509.62, 163,652.40 and 76,141.96 is: 105,146.02
Step by Step Solution
- Step 1: Write the proportion equation
118,509.62 : 163,652.40 = 76,141.96 : x - Step 2: Convert to fraction form
118,509.62/163,652.40 = 76,141.96/x - Step 3: Cross multiply
118,509.62x = 163,652.40 × 76,141.96 - Step 4: Simplify right side
118,509.62x = 12,460,814,085.57 - Step 5: Solve for x
x = 12,460,814,085.57/118,509.62 - Step 6: Final answer
x = 105,146.02
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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.