Finding the Fourth Proportional to 133,692.90, 184,580.09 and 86,029.08
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Solution
The fourth proportional to 133,692.90, 184,580.09 and 86,029.08 is: 118,774.11
Step by Step Solution
- Step 1: Write the proportion equation
133,692.90 : 184,580.09 = 86,029.08 : x - Step 2: Convert to fraction form
133,692.90/184,580.09 = 86,029.08/x - Step 3: Cross multiply
133,692.90x = 184,580.09 × 86,029.08 - Step 4: Simplify right side
133,692.90x = 15,879,255,329.02 - Step 5: Solve for x
x = 15,879,255,329.02/133,692.90 - Step 6: Final answer
x = 118,774.11
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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.