Finding the Fourth Proportional to 133,177.91, 183,778.47 and 72,747.68
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Solution
The fourth proportional to 133,177.91, 183,778.47 and 72,747.68 is: 100,387.95
Step by Step Solution
- Step 1: Write the proportion equation
133,177.91 : 183,778.47 = 72,747.68 : x - Step 2: Convert to fraction form
133,177.91/183,778.47 = 72,747.68/x - Step 3: Cross multiply
133,177.91x = 183,778.47 × 72,747.68 - Step 4: Simplify right side
133,177.91x = 13,369,456,407.56 - Step 5: Solve for x
x = 13,369,456,407.56/133,177.91 - Step 6: Final answer
x = 100,387.95
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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.