Finding the Fourth Proportional to 133,971.84, 184,874.44 and 77,379.84
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Solution
The fourth proportional to 133,971.84, 184,874.44 and 77,379.84 is: 106,780.31
Step by Step Solution
- Step 1: Write the proportion equation
133,971.84 : 184,874.44 = 77,379.84 : x - Step 2: Convert to fraction form
133,971.84/184,874.44 = 77,379.84/x - Step 3: Cross multiply
133,971.84x = 184,874.44 × 77,379.84 - Step 4: Simplify right side
133,971.84x = 14,305,554,587.29 - Step 5: Solve for x
x = 14,305,554,587.29/133,971.84 - Step 6: Final answer
x = 106,780.31
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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.