Finding the Fourth Proportional to 84,149.53, 115,990.08 and 73,219.70
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Solution
The fourth proportional to 84,149.53, 115,990.08 and 73,219.70 is: 100,924.60
Step by Step Solution
- Step 1: Write the proportion equation
84,149.53 : 115,990.08 = 73,219.70 : x - Step 2: Convert to fraction form
84,149.53/115,990.08 = 73,219.70/x - Step 3: Cross multiply
84,149.53x = 115,990.08 × 73,219.70 - Step 4: Simplify right side
84,149.53x = 8,492,758,223.53 - Step 5: Solve for x
x = 8,492,758,223.53/84,149.53 - Step 6: Final answer
x = 100,924.60
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1.5x scale
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.