Finding the Fourth Proportional to 117,683.13, 162,398.74 and 67,372.41
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Solution
The fourth proportional to 117,683.13, 162,398.74 and 67,372.41 is: 92,971.65
Step by Step Solution
- Step 1: Write the proportion equation
117,683.13 : 162,398.74 = 67,372.41 : x - Step 2: Convert to fraction form
117,683.13/162,398.74 = 67,372.41/x - Step 3: Cross multiply
117,683.13x = 162,398.74 × 67,372.41 - Step 4: Simplify right side
117,683.13x = 10,941,194,494.76 - Step 5: Solve for x
x = 10,941,194,494.76/117,683.13 - Step 6: Final answer
x = 92,971.65
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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.