Finding the Fourth Proportional to 131,737.32, 197,637.42 and 42,990.99
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Solution
The fourth proportional to 131,737.32, 197,637.42 and 42,990.99 is: 64,496.75
Step by Step Solution
- Step 1: Write the proportion equation
131,737.32 : 197,637.42 = 42,990.99 : x - Step 2: Convert to fraction form
131,737.32/197,637.42 = 42,990.99/x - Step 3: Cross multiply
131,737.32x = 197,637.42 × 42,990.99 - Step 4: Simplify right side
131,737.32x = 8,496,628,346.85 - Step 5: Solve for x
x = 8,496,628,346.85/131,737.32 - Step 6: Final answer
x = 64,496.75
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1.5x scale
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.