Finding the Fourth Proportional to 107,320.70, 160,981.05 and 48,158.30
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Solution
The fourth proportional to 107,320.70, 160,981.05 and 48,158.30 is: 72,237.45
Step by Step Solution
- Step 1: Write the proportion equation
107,320.70 : 160,981.05 = 48,158.30 : x - Step 2: Convert to fraction form
107,320.70/160,981.05 = 48,158.30/x - Step 3: Cross multiply
107,320.70x = 160,981.05 × 48,158.30 - Step 4: Simplify right side
107,320.70x = 7,752,573,700.22 - Step 5: Solve for x
x = 7,752,573,700.22/107,320.70 - Step 6: Final answer
x = 72,237.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.