Finding the Fourth Proportional to 135,416.60, 203,143.80 and 56,512.74
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Solution
The fourth proportional to 135,416.60, 203,143.80 and 56,512.74 is: 84,777.00
Step by Step Solution
- Step 1: Write the proportion equation
135,416.60 : 203,143.80 = 56,512.74 : x - Step 2: Convert to fraction form
135,416.60/203,143.80 = 56,512.74/x - Step 3: Cross multiply
135,416.60x = 203,143.80 × 56,512.74 - Step 4: Simplify right side
135,416.60x = 11,480,212,752.01 - Step 5: Solve for x
x = 11,480,212,752.01/135,416.60 - Step 6: Final answer
x = 84,777.00
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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.