Finding the Fourth Proportional to 156,782.66, 235,173.99 and 51,631.70
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Solution
The fourth proportional to 156,782.66, 235,173.99 and 51,631.70 is: 77,447.55
Step by Step Solution
- Step 1: Write the proportion equation
156,782.66 : 235,173.99 = 51,631.70 : x - Step 2: Convert to fraction form
156,782.66/235,173.99 = 51,631.70/x - Step 3: Cross multiply
156,782.66x = 235,173.99 × 51,631.70 - Step 4: Simplify right side
156,782.66x = 12,142,432,899.48 - Step 5: Solve for x
x = 12,142,432,899.48/156,782.66 - Step 6: Final answer
x = 77,447.55
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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.