Finding the Fourth Proportional to 133,431.63, 184,101.08 and 79,692.99
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Solution
The fourth proportional to 133,431.63, 184,101.08 and 79,692.99 is: 109,955.68
Step by Step Solution
- Step 1: Write the proportion equation
133,431.63 : 184,101.08 = 79,692.99 : x - Step 2: Convert to fraction form
133,431.63/184,101.08 = 79,692.99/x - Step 3: Cross multiply
133,431.63x = 184,101.08 × 79,692.99 - Step 4: Simplify right side
133,431.63x = 14,671,565,128.96 - Step 5: Solve for x
x = 14,671,565,128.96/133,431.63 - Step 6: Final answer
x = 109,955.68
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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.