Finding the Fourth Proportional to 122,531.83, 183,809.08 and 47,657.65
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Solution
The fourth proportional to 122,531.83, 183,809.08 and 47,657.65 is: 71,490.88
Step by Step Solution
- Step 1: Write the proportion equation
122,531.83 : 183,809.08 = 47,657.65 : x - Step 2: Convert to fraction form
122,531.83/183,809.08 = 47,657.65/x - Step 3: Cross multiply
122,531.83x = 183,809.08 × 47,657.65 - Step 4: Simplify right side
122,531.83x = 8,759,908,801.46 - Step 5: Solve for x
x = 8,759,908,801.46/122,531.83 - Step 6: Final answer
x = 71,490.88
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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.