Finding the Fourth Proportional to 156,641.24, 216,113.44 and 88,651.46
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Solution
The fourth proportional to 156,641.24, 216,113.44 and 88,651.46 is: 122,309.88
Step by Step Solution
- Step 1: Write the proportion equation
156,641.24 : 216,113.44 = 88,651.46 : x - Step 2: Convert to fraction form
156,641.24/216,113.44 = 88,651.46/x - Step 3: Cross multiply
156,641.24x = 216,113.44 × 88,651.46 - Step 4: Simplify right side
156,641.24x = 19,158,771,981.62 - Step 5: Solve for x
x = 19,158,771,981.62/156,641.24 - Step 6: Final answer
x = 122,309.88
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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.