Finding the Fourth Proportional to 135,477.80, 203,216.70 and 61,605.80
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Solution
The fourth proportional to 135,477.80, 203,216.70 and 61,605.80 is: 92,408.70
Step by Step Solution
- Step 1: Write the proportion equation
135,477.80 : 203,216.70 = 61,605.80 : x - Step 2: Convert to fraction form
135,477.80/203,216.70 = 61,605.80/x - Step 3: Cross multiply
135,477.80x = 203,216.70 × 61,605.80 - Step 4: Simplify right side
135,477.80x = 12,519,327,376.86 - Step 5: Solve for x
x = 12,519,327,376.86/135,477.80 - Step 6: Final answer
x = 92,408.70
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1.5x scale
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.