Finding the Fourth Proportional to 84,212.46, 125,702.08 and 74,248.20
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Solution
The fourth proportional to 84,212.46, 125,702.08 and 74,248.20 is: 110,828.65
Step by Step Solution
- Step 1: Write the proportion equation
84,212.46 : 125,702.08 = 74,248.20 : x - Step 2: Convert to fraction form
84,212.46/125,702.08 = 74,248.20/x - Step 3: Cross multiply
84,212.46x = 125,702.08 × 74,248.20 - Step 4: Simplify right side
84,212.46x = 9,333,153,176.26 - Step 5: Solve for x
x = 9,333,153,176.26/84,212.46 - Step 6: Final answer
x = 110,828.65
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.