Finding the Fourth Proportional to 133,072.26, 183,644.16 and 72,646.53
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Solution
The fourth proportional to 133,072.26, 183,644.16 and 72,646.53 is: 100,254.64
Step by Step Solution
- Step 1: Write the proportion equation
133,072.26 : 183,644.16 = 72,646.53 : x - Step 2: Convert to fraction form
133,072.26/183,644.16 = 72,646.53/x - Step 3: Cross multiply
133,072.26x = 183,644.16 × 72,646.53 - Step 4: Simplify right side
133,072.26x = 13,341,110,978.76 - Step 5: Solve for x
x = 13,341,110,978.76/133,072.26 - Step 6: Final answer
x = 100,254.64
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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.