Finding the Fourth Proportional to 148,748.75, 205,252.62 and 87,497.72
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Solution
The fourth proportional to 148,748.75, 205,252.62 and 87,497.72 is: 120,734.70
Step by Step Solution
- Step 1: Write the proportion equation
148,748.75 : 205,252.62 = 87,497.72 : x - Step 2: Convert to fraction form
148,748.75/205,252.62 = 87,497.72/x - Step 3: Cross multiply
148,748.75x = 205,252.62 × 87,497.72 - Step 4: Simplify right side
148,748.75x = 17,959,136,274.03 - Step 5: Solve for x
x = 17,959,136,274.03/148,748.75 - Step 6: Final answer
x = 120,734.70
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1.5x scale
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.