Finding the Fourth Proportional to 110,412.84, 165,377.88 and 85,387.08
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Solution
The fourth proportional to 110,412.84, 165,377.88 and 85,387.08 is: 127,893.95
Step by Step Solution
- Step 1: Write the proportion equation
110,412.84 : 165,377.88 = 85,387.08 : x - Step 2: Convert to fraction form
110,412.84/165,377.88 = 85,387.08/x - Step 3: Cross multiply
110,412.84x = 165,377.88 × 85,387.08 - Step 4: Simplify right side
110,412.84x = 14,121,134,269.79 - Step 5: Solve for x
x = 14,121,134,269.79/110,412.84 - Step 6: Final answer
x = 127,893.95
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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.