Finding the Fourth Proportional to 155,626.34, 214,762.02 and 87,643.49
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Solution
The fourth proportional to 155,626.34, 214,762.02 and 87,643.49 is: 120,946.70
Step by Step Solution
- Step 1: Write the proportion equation
155,626.34 : 214,762.02 = 87,643.49 : x - Step 2: Convert to fraction form
155,626.34/214,762.02 = 87,643.49/x - Step 3: Cross multiply
155,626.34x = 214,762.02 × 87,643.49 - Step 4: Simplify right side
155,626.34x = 18,822,492,952.25 - Step 5: Solve for x
x = 18,822,492,952.25/155,626.34 - Step 6: Final answer
x = 120,946.70
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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.