Finding the Fourth Proportional to 106,612.23, 147,122.07 and 58,864.55
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Solution
The fourth proportional to 106,612.23, 147,122.07 and 58,864.55 is: 81,231.53
Step by Step Solution
- Step 1: Write the proportion equation
106,612.23 : 147,122.07 = 58,864.55 : x - Step 2: Convert to fraction form
106,612.23/147,122.07 = 58,864.55/x - Step 3: Cross multiply
106,612.23x = 147,122.07 × 58,864.55 - Step 4: Simplify right side
106,612.23x = 8,660,274,445.62 - Step 5: Solve for x
x = 8,660,274,445.62/106,612.23 - Step 6: Final answer
x = 81,231.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.