Finding the Fourth Proportional to 118,419.99, 163,420.73 and 64,704.99
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Solution
The fourth proportional to 118,419.99, 163,420.73 and 64,704.99 is: 89,293.52
Step by Step Solution
- Step 1: Write the proportion equation
118,419.99 : 163,420.73 = 64,704.99 : x - Step 2: Convert to fraction form
118,419.99/163,420.73 = 64,704.99/x - Step 3: Cross multiply
118,419.99x = 163,420.73 × 64,704.99 - Step 4: Simplify right side
118,419.99x = 10,574,137,232.39 - Step 5: Solve for x
x = 10,574,137,232.39/118,419.99 - Step 6: Final answer
x = 89,293.52
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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.