Finding the Fourth Proportional to 156,841.65, 216,441.14 and 85,221.99
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Solution
The fourth proportional to 156,841.65, 216,441.14 and 85,221.99 is: 117,606.16
Step by Step Solution
- Step 1: Write the proportion equation
156,841.65 : 216,441.14 = 85,221.99 : x - Step 2: Convert to fraction form
156,841.65/216,441.14 = 85,221.99/x - Step 3: Cross multiply
156,841.65x = 216,441.14 × 85,221.99 - Step 4: Simplify right side
156,841.65x = 18,445,544,242.56 - Step 5: Solve for x
x = 18,445,544,242.56/156,841.65 - Step 6: Final answer
x = 117,606.16
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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.