Finding the Fourth Proportional to 107,430.14, 160,356.62 and 99,513.20
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Solution
The fourth proportional to 107,430.14, 160,356.62 and 99,513.20 is: 148,539.32
Step by Step Solution
- Step 1: Write the proportion equation
107,430.14 : 160,356.62 = 99,513.20 : x - Step 2: Convert to fraction form
107,430.14/160,356.62 = 99,513.20/x - Step 3: Cross multiply
107,430.14x = 160,356.62 × 99,513.20 - Step 4: Simplify right side
107,430.14x = 15,957,599,098.03 - Step 5: Solve for x
x = 15,957,599,098.03/107,430.14 - Step 6: Final answer
x = 148,539.32
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.