Finding the Fourth Proportional to 138,793.60, 207,862.35 and 94,178.80
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Solution
The fourth proportional to 138,793.60, 207,862.35 and 94,178.80 is: 141,045.60
Step by Step Solution
- Step 1: Write the proportion equation
138,793.60 : 207,862.35 = 94,178.80 : x - Step 2: Convert to fraction form
138,793.60/207,862.35 = 94,178.80/x - Step 3: Cross multiply
138,793.60x = 207,862.35 × 94,178.80 - Step 4: Simplify right side
138,793.60x = 19,576,226,688.18 - Step 5: Solve for x
x = 19,576,226,688.18/138,793.60 - Step 6: Final answer
x = 141,045.60
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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.