Finding the Fourth Proportional to 148,129.20, 221,545.80 and 132,447.60
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Solution
The fourth proportional to 148,129.20, 221,545.80 and 132,447.60 is: 198,092.00
Step by Step Solution
- Step 1: Write the proportion equation
148,129.20 : 221,545.80 = 132,447.60 : x - Step 2: Convert to fraction form
148,129.20/221,545.80 = 132,447.60/x - Step 3: Cross multiply
148,129.20x = 221,545.80 × 132,447.60 - Step 4: Simplify right side
148,129.20x = 29,343,209,500.08 - Step 5: Solve for x
x = 29,343,209,500.08/148,129.20 - Step 6: Final answer
x = 198,092.00
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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.