Finding the Fourth Proportional to 162,232.84, 243,386.70 and 68,742.28
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Solution
The fourth proportional to 162,232.84, 243,386.70 and 68,742.28 is: 103,129.28
Step by Step Solution
- Step 1: Write the proportion equation
162,232.84 : 243,386.70 = 68,742.28 : x - Step 2: Convert to fraction form
162,232.84/243,386.70 = 68,742.28/x - Step 3: Cross multiply
162,232.84x = 243,386.70 × 68,742.28 - Step 4: Simplify right side
162,232.84x = 16,730,956,679.68 - Step 5: Solve for x
x = 16,730,956,679.68/162,232.84 - Step 6: Final answer
x = 103,129.28
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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.