Finding the Fourth Proportional to 176,688.52, 243,775.11 and 100,201.60
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Solution
The fourth proportional to 176,688.52, 243,775.11 and 100,201.60 is: 138,246.99
Step by Step Solution
- Step 1: Write the proportion equation
176,688.52 : 243,775.11 = 100,201.60 : x - Step 2: Convert to fraction form
176,688.52/243,775.11 = 100,201.60/x - Step 3: Cross multiply
176,688.52x = 243,775.11 × 100,201.60 - Step 4: Simplify right side
176,688.52x = 24,426,656,062.18 - Step 5: Solve for x
x = 24,426,656,062.18/176,688.52 - Step 6: Final answer
x = 138,246.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.