Finding the Fourth Proportional to 156,745.40, 235,118.10 and 133,125.80
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Solution
The fourth proportional to 156,745.40, 235,118.10 and 133,125.80 is: 199,688.70
Step by Step Solution
- Step 1: Write the proportion equation
156,745.40 : 235,118.10 = 133,125.80 : x - Step 2: Convert to fraction form
156,745.40/235,118.10 = 133,125.80/x - Step 3: Cross multiply
156,745.40x = 235,118.10 × 133,125.80 - Step 4: Simplify right side
156,745.40x = 31,300,285,156.98 - Step 5: Solve for x
x = 31,300,285,156.98/156,745.40 - Step 6: Final answer
x = 199,688.70
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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.