Finding the Fourth Proportional to 156,326.18, 234,511.14 and 51,124.20
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Solution
The fourth proportional to 156,326.18, 234,511.14 and 51,124.20 is: 76,693.45
Step by Step Solution
- Step 1: Write the proportion equation
156,326.18 : 234,511.14 = 51,124.20 : x - Step 2: Convert to fraction form
156,326.18/234,511.14 = 51,124.20/x - Step 3: Cross multiply
156,326.18x = 234,511.14 × 51,124.20 - Step 4: Simplify right side
156,326.18x = 11,989,194,423.59 - Step 5: Solve for x
x = 11,989,194,423.59/156,326.18 - Step 6: Final answer
x = 76,693.45
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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.