Finding the Fourth Proportional to 122,986.46, 184,331.57 and 51,881.63
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Solution
The fourth proportional to 122,986.46, 184,331.57 and 51,881.63 is: 77,759.95
Step by Step Solution
- Step 1: Write the proportion equation
122,986.46 : 184,331.57 = 51,881.63 : x - Step 2: Convert to fraction form
122,986.46/184,331.57 = 51,881.63/x - Step 3: Cross multiply
122,986.46x = 184,331.57 × 51,881.63 - Step 4: Simplify right side
122,986.46x = 9,563,421,130.99 - Step 5: Solve for x
x = 9,563,421,130.99/122,986.46 - Step 6: Final answer
x = 77,759.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.