Finding the Fourth Proportional to 156,647.60, 216,177.53 and 85,027.44
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Solution
The fourth proportional to 156,647.60, 216,177.53 and 85,027.44 is: 117,339.95
Step by Step Solution
- Step 1: Write the proportion equation
156,647.60 : 216,177.53 = 85,027.44 : x - Step 2: Convert to fraction form
156,647.60/216,177.53 = 85,027.44/x - Step 3: Cross multiply
156,647.60x = 216,177.53 × 85,027.44 - Step 4: Simplify right side
156,647.60x = 18,381,021,536.29 - Step 5: Solve for x
x = 18,381,021,536.29/156,647.60 - Step 6: Final answer
x = 117,339.95
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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.