Finding the Fourth Proportional to 133,173.98, 183,779.01 and 72,744.65
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Solution
The fourth proportional to 133,173.98, 183,779.01 and 72,744.65 is: 100,387.02
Step by Step Solution
- Step 1: Write the proportion equation
133,173.98 : 183,779.01 = 72,744.65 : x - Step 2: Convert to fraction form
133,173.98/183,779.01 = 72,744.65/x - Step 3: Cross multiply
133,173.98x = 183,779.01 × 72,744.65 - Step 4: Simplify right side
133,173.98x = 13,368,938,840.90 - Step 5: Solve for x
x = 13,368,938,840.90/133,173.98 - Step 6: Final answer
x = 100,387.02
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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.