Finding the Fourth Proportional to 176,685.11, 243,821.09 and 101,228.75
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Solution
The fourth proportional to 176,685.11, 243,821.09 and 101,228.75 is: 139,693.17
Step by Step Solution
- Step 1: Write the proportion equation
176,685.11 : 243,821.09 = 101,228.75 : x - Step 2: Convert to fraction form
176,685.11/243,821.09 = 101,228.75/x - Step 3: Cross multiply
176,685.11x = 243,821.09 × 101,228.75 - Step 4: Simplify right side
176,685.11x = 24,681,703,658.19 - Step 5: Solve for x
x = 24,681,703,658.19/176,685.11 - Step 6: Final answer
x = 139,693.17
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1.5x scale
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.