Finding the Fourth Proportional to 156,725.10, 235,127.43 and 72,545.99
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Solution
The fourth proportional to 156,725.10, 235,127.43 and 72,545.99 is: 108,837.39
Step by Step Solution
- Step 1: Write the proportion equation
156,725.10 : 235,127.43 = 72,545.99 : x - Step 2: Convert to fraction form
156,725.10/235,127.43 = 72,545.99/x - Step 3: Cross multiply
156,725.10x = 235,127.43 × 72,545.99 - Step 4: Simplify right side
156,725.10x = 17,057,551,009.87 - Step 5: Solve for x
x = 17,057,551,009.87/156,725.10 - Step 6: Final answer
x = 108,837.39
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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.