Finding the Fourth Proportional to 139,015.98, 207,506.61 and 119,420.46
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Solution
The fourth proportional to 139,015.98, 207,506.61 and 119,420.46 is: 178,256.74
Step by Step Solution
- Step 1: Write the proportion equation
139,015.98 : 207,506.61 = 119,420.46 : x - Step 2: Convert to fraction form
139,015.98/207,506.61 = 119,420.46/x - Step 3: Cross multiply
139,015.98x = 207,506.61 × 119,420.46 - Step 4: Simplify right side
139,015.98x = 24,780,534,819.24 - Step 5: Solve for x
x = 24,780,534,819.24/139,015.98 - Step 6: Final answer
x = 178,256.74
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.