Finding the Fourth Proportional to 162,719.18, 243,145.84 and 124,036.70
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Solution
The fourth proportional to 162,719.18, 243,145.84 and 124,036.70 is: 185,343.90
Step by Step Solution
- Step 1: Write the proportion equation
162,719.18 : 243,145.84 = 124,036.70 : x - Step 2: Convert to fraction form
162,719.18/243,145.84 = 124,036.70/x - Step 3: Cross multiply
162,719.18x = 243,145.84 × 124,036.70 - Step 4: Simplify right side
162,719.18x = 30,159,007,612.33 - Step 5: Solve for x
x = 30,159,007,612.33/162,719.18 - Step 6: Final answer
x = 185,343.90
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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.