Finding the Fourth Proportional to 122,376.80, 183,565.20 and 117,711.20
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Solution
The fourth proportional to 122,376.80, 183,565.20 and 117,711.20 is: 176,566.80
Step by Step Solution
- Step 1: Write the proportion equation
122,376.80 : 183,565.20 = 117,711.20 : x - Step 2: Convert to fraction form
122,376.80/183,565.20 = 117,711.20/x - Step 3: Cross multiply
122,376.80x = 183,565.20 × 117,711.20 - Step 4: Simplify right side
122,376.80x = 21,607,679,970.24 - Step 5: Solve for x
x = 21,607,679,970.24/122,376.80 - Step 6: Final answer
x = 176,566.80
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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.