Finding the Fourth Proportional to 122,572.80, 183,902.40 and 118,252.80
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Solution
The fourth proportional to 122,572.80, 183,902.40 and 118,252.80 is: 177,420.88
Step by Step Solution
- Step 1: Write the proportion equation
122,572.80 : 183,902.40 = 118,252.80 : x - Step 2: Convert to fraction form
122,572.80/183,902.40 = 118,252.80/x - Step 3: Cross multiply
122,572.80x = 183,902.40 × 118,252.80 - Step 4: Simplify right side
122,572.80x = 21,746,973,726.72 - Step 5: Solve for x
x = 21,746,973,726.72/122,572.80 - Step 6: Final answer
x = 177,420.88
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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.