Finding the Fourth Proportional to 133,207.58, 199,681.50 and 53,221.70
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Solution
The fourth proportional to 133,207.58, 199,681.50 and 53,221.70 is: 79,780.66
Step by Step Solution
- Step 1: Write the proportion equation
133,207.58 : 199,681.50 = 53,221.70 : x - Step 2: Convert to fraction form
133,207.58/199,681.50 = 53,221.70/x - Step 3: Cross multiply
133,207.58x = 199,681.50 × 53,221.70 - Step 4: Simplify right side
133,207.58x = 10,627,388,888.55 - Step 5: Solve for x
x = 10,627,388,888.55/133,207.58 - Step 6: Final answer
x = 79,780.66
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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.