Finding the Fourth Proportional to 118,969.56, 178,397.84 and 69,064.99
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Solution
The fourth proportional to 118,969.56, 178,397.84 and 69,064.99 is: 103,564.68
Step by Step Solution
- Step 1: Write the proportion equation
118,969.56 : 178,397.84 = 69,064.99 : x - Step 2: Convert to fraction form
118,969.56/178,397.84 = 69,064.99/x - Step 3: Cross multiply
118,969.56x = 178,397.84 × 69,064.99 - Step 4: Simplify right side
118,969.56x = 12,321,044,762.29 - Step 5: Solve for x
x = 12,321,044,762.29/118,969.56 - Step 6: Final answer
x = 103,564.68
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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.