Finding the Fourth Proportional to 119,332.12, 164,684.24 and 74,024.70
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Solution
The fourth proportional to 119,332.12, 164,684.24 and 74,024.70 is: 102,157.75
Step by Step Solution
- Step 1: Write the proportion equation
119,332.12 : 164,684.24 = 74,024.70 : x - Step 2: Convert to fraction form
119,332.12/164,684.24 = 74,024.70/x - Step 3: Cross multiply
119,332.12x = 164,684.24 × 74,024.70 - Step 4: Simplify right side
119,332.12x = 12,190,700,750.63 - Step 5: Solve for x
x = 12,190,700,750.63/119,332.12 - Step 6: Final answer
x = 102,157.75
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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.