Finding the Fourth Proportional to 103,802.14, 155,703.30 and 74,277.64
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Solution
The fourth proportional to 103,802.14, 155,703.30 and 74,277.64 is: 111,416.52
Step by Step Solution
- Step 1: Write the proportion equation
103,802.14 : 155,703.30 = 74,277.64 : x - Step 2: Convert to fraction form
103,802.14/155,703.30 = 74,277.64/x - Step 3: Cross multiply
103,802.14x = 155,703.30 × 74,277.64 - Step 4: Simplify right side
103,802.14x = 11,565,273,664.21 - Step 5: Solve for x
x = 11,565,273,664.21/103,802.14 - Step 6: Final answer
x = 111,416.52
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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.