Finding the Fourth Proportional to 118,718.99, 163,836.62 and 67,740.02
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Solution
The fourth proportional to 118,718.99, 163,836.62 and 67,740.02 is: 93,483.74
Step by Step Solution
- Step 1: Write the proportion equation
118,718.99 : 163,836.62 = 67,740.02 : x - Step 2: Convert to fraction form
118,718.99/163,836.62 = 67,740.02/x - Step 3: Cross multiply
118,718.99x = 163,836.62 × 67,740.02 - Step 4: Simplify right side
118,718.99x = 11,098,294,757.65 - Step 5: Solve for x
x = 11,098,294,757.65/118,718.99 - Step 6: Final answer
x = 93,483.74
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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.