Finding the Fourth Proportional to 118,741.68, 178,134.93 and 47,669.88
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Solution
The fourth proportional to 118,741.68, 178,134.93 and 47,669.88 is: 71,513.82
Step by Step Solution
- Step 1: Write the proportion equation
118,741.68 : 178,134.93 = 47,669.88 : x - Step 2: Convert to fraction form
118,741.68/178,134.93 = 47,669.88/x - Step 3: Cross multiply
118,741.68x = 178,134.93 × 47,669.88 - Step 4: Simplify right side
118,741.68x = 8,491,671,404.91 - Step 5: Solve for x
x = 8,491,671,404.91/118,741.68 - Step 6: Final answer
x = 71,513.82
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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.