Finding the Fourth Proportional to 156,533.34, 216,014.34 and 84,912.75
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Solution
The fourth proportional to 156,533.34, 216,014.34 and 84,912.75 is: 117,178.69
Step by Step Solution
- Step 1: Write the proportion equation
156,533.34 : 216,014.34 = 84,912.75 : x - Step 2: Convert to fraction form
156,533.34/216,014.34 = 84,912.75/x - Step 3: Cross multiply
156,533.34x = 216,014.34 × 84,912.75 - Step 4: Simplify right side
156,533.34x = 18,342,371,648.84 - Step 5: Solve for x
x = 18,342,371,648.84/156,533.34 - Step 6: Final answer
x = 117,178.69
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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.