Finding the Fourth Proportional to 133,408.47, 184,103.62 and 72,979.09
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Solution
The fourth proportional to 133,408.47, 184,103.62 and 72,979.09 is: 100,711.11
Step by Step Solution
- Step 1: Write the proportion equation
133,408.47 : 184,103.62 = 72,979.09 : x - Step 2: Convert to fraction form
133,408.47/184,103.62 = 72,979.09/x - Step 3: Cross multiply
133,408.47x = 184,103.62 × 72,979.09 - Step 4: Simplify right side
133,408.47x = 13,435,714,653.31 - Step 5: Solve for x
x = 13,435,714,653.31/133,408.47 - Step 6: Final answer
x = 100,711.11
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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.