Finding the Fourth Proportional to 156,485.68, 215,950.34 and 84,865.68
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Solution
The fourth proportional to 156,485.68, 215,950.34 and 84,865.68 is: 117,114.69
Step by Step Solution
- Step 1: Write the proportion equation
156,485.68 : 215,950.34 = 84,865.68 : x - Step 2: Convert to fraction form
156,485.68/215,950.34 = 84,865.68/x - Step 3: Cross multiply
156,485.68x = 215,950.34 × 84,865.68 - Step 4: Simplify right side
156,485.68x = 18,326,772,450.33 - Step 5: Solve for x
x = 18,326,772,450.33/156,485.68 - Step 6: Final answer
x = 117,114.69
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1.5x scale
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.