Finding the Fourth Proportional to 159,865.60, 239,884.80 and 71,132.80
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Solution
The fourth proportional to 159,865.60, 239,884.80 and 71,132.80 is: 106,737.64
Step by Step Solution
- Step 1: Write the proportion equation
159,865.60 : 239,884.80 = 71,132.80 : x - Step 2: Convert to fraction form
159,865.60/239,884.80 = 71,132.80/x - Step 3: Cross multiply
159,865.60x = 239,884.80 × 71,132.80 - Step 4: Simplify right side
159,865.60x = 17,063,677,501.44 - Step 5: Solve for x
x = 17,063,677,501.44/159,865.60 - Step 6: Final answer
x = 106,737.64
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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.