Finding the Fourth Proportional to 128,423.60, 192,577.80 and 58,266.80
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Solution
The fourth proportional to 128,423.60, 192,577.80 and 58,266.80 is: 87,374.07
Step by Step Solution
- Step 1: Write the proportion equation
128,423.60 : 192,577.80 = 58,266.80 : x - Step 2: Convert to fraction form
128,423.60/192,577.80 = 58,266.80/x - Step 3: Cross multiply
128,423.60x = 192,577.80 × 58,266.80 - Step 4: Simplify right side
128,423.60x = 11,220,892,157.04 - Step 5: Solve for x
x = 11,220,892,157.04/128,423.60 - Step 6: Final answer
x = 87,374.07
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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.