Finding the Fourth Proportional to 156,979.70, 235,395.35 and 57,070.26
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Solution
The fourth proportional to 156,979.70, 235,395.35 and 57,070.26 is: 85,578.41
Step by Step Solution
- Step 1: Write the proportion equation
156,979.70 : 235,395.35 = 57,070.26 : x - Step 2: Convert to fraction form
156,979.70/235,395.35 = 57,070.26/x - Step 3: Cross multiply
156,979.70x = 235,395.35 × 57,070.26 - Step 4: Simplify right side
156,979.70x = 13,434,073,827.29 - Step 5: Solve for x
x = 13,434,073,827.29/156,979.70 - Step 6: Final answer
x = 85,578.41
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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.