Finding the Fourth Proportional to 133,169.25, 183,778.97 and 76,580.63
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Solution
The fourth proportional to 133,169.25, 183,778.97 and 76,580.63 is: 105,684.38
Step by Step Solution
- Step 1: Write the proportion equation
133,169.25 : 183,778.97 = 76,580.63 : x - Step 2: Convert to fraction form
133,169.25/183,778.97 = 76,580.63/x - Step 3: Cross multiply
133,169.25x = 183,778.97 × 76,580.63 - Step 4: Simplify right side
133,169.25x = 14,073,909,303.35 - Step 5: Solve for x
x = 14,073,909,303.35/133,169.25 - Step 6: Final answer
x = 105,684.38
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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.