Finding the Fourth Proportional to 156,658.74, 235,020.66 and 71,228.88
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Solution
The fourth proportional to 156,658.74, 235,020.66 and 71,228.88 is: 106,858.12
Step by Step Solution
- Step 1: Write the proportion equation
156,658.74 : 235,020.66 = 71,228.88 : x - Step 2: Convert to fraction form
156,658.74/235,020.66 = 71,228.88/x - Step 3: Cross multiply
156,658.74x = 235,020.66 × 71,228.88 - Step 4: Simplify right side
156,658.74x = 16,740,258,602.30 - Step 5: Solve for x
x = 16,740,258,602.30/156,658.74 - Step 6: Final answer
x = 106,858.12
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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.