Finding the Fourth Proportional to 147,781.21, 221,702.99 and 47,933.65
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Solution
The fourth proportional to 147,781.21, 221,702.99 and 47,933.65 is: 71,910.58
Step by Step Solution
- Step 1: Write the proportion equation
147,781.21 : 221,702.99 = 47,933.65 : x - Step 2: Convert to fraction form
147,781.21/221,702.99 = 47,933.65/x - Step 3: Cross multiply
147,781.21x = 221,702.99 × 47,933.65 - Step 4: Simplify right side
147,781.21x = 10,627,032,178.43 - Step 5: Solve for x
x = 10,627,032,178.43/147,781.21 - Step 6: Final answer
x = 71,910.58
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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.