Finding the Fourth Proportional to 156,926.78, 235,257.42 and 68,113.52
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Solution
The fourth proportional to 156,926.78, 235,257.42 and 68,113.52 is: 102,112.66
Step by Step Solution
- Step 1: Write the proportion equation
156,926.78 : 235,257.42 = 68,113.52 : x - Step 2: Convert to fraction form
156,926.78/235,257.42 = 68,113.52/x - Step 3: Cross multiply
156,926.78x = 235,257.42 × 68,113.52 - Step 4: Simplify right side
156,926.78x = 16,024,210,982.32 - Step 5: Solve for x
x = 16,024,210,982.32/156,926.78 - Step 6: Final answer
x = 102,112.66
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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.