Finding the Fourth Proportional to 125,269.18, 172,878.54 and 74,312.08
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Solution
The fourth proportional to 125,269.18, 172,878.54 and 74,312.08 is: 102,554.86
Step by Step Solution
- Step 1: Write the proportion equation
125,269.18 : 172,878.54 = 74,312.08 : x - Step 2: Convert to fraction form
125,269.18/172,878.54 = 74,312.08/x - Step 3: Cross multiply
125,269.18x = 172,878.54 × 74,312.08 - Step 4: Simplify right side
125,269.18x = 12,846,963,183.90 - Step 5: Solve for x
x = 12,846,963,183.90/125,269.18 - Step 6: Final answer
x = 102,554.86
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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.