Finding the Fourth Proportional to 156,988.38, 235,490.70 and 51,815.54
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Solution
The fourth proportional to 156,988.38, 235,490.70 and 51,815.54 is: 77,725.99
Step by Step Solution
- Step 1: Write the proportion equation
156,988.38 : 235,490.70 = 51,815.54 : x - Step 2: Convert to fraction form
156,988.38/235,490.70 = 51,815.54/x - Step 3: Cross multiply
156,988.38x = 235,490.70 × 51,815.54 - Step 4: Simplify right side
156,988.38x = 12,202,077,785.48 - Step 5: Solve for x
x = 12,202,077,785.48/156,988.38 - Step 6: Final answer
x = 77,725.99
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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.