Finding the Fourth Proportional to 103,245.03, 142,425.68 and 67,455.99
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Solution
The fourth proportional to 103,245.03, 142,425.68 and 67,455.99 is: 93,054.99
Step by Step Solution
- Step 1: Write the proportion equation
103,245.03 : 142,425.68 = 67,455.99 : x - Step 2: Convert to fraction form
103,245.03/142,425.68 = 67,455.99/x - Step 3: Cross multiply
103,245.03x = 142,425.68 × 67,455.99 - Step 4: Simplify right side
103,245.03x = 9,607,464,908.54 - Step 5: Solve for x
x = 9,607,464,908.54/103,245.03 - Step 6: Final answer
x = 93,054.99
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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.