Finding the Fourth Proportional to 113,613.14, 156,778.97 and 62,623.05
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Solution
The fourth proportional to 113,613.14, 156,778.97 and 62,623.05 is: 86,415.86
Step by Step Solution
- Step 1: Write the proportion equation
113,613.14 : 156,778.97 = 62,623.05 : x - Step 2: Convert to fraction form
113,613.14/156,778.97 = 62,623.05/x - Step 3: Cross multiply
113,613.14x = 156,778.97 × 62,623.05 - Step 4: Simplify right side
113,613.14x = 9,817,977,257.48 - Step 5: Solve for x
x = 9,817,977,257.48/113,613.14 - Step 6: Final answer
x = 86,415.86
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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.