Finding the Fourth Proportional to 103,490.14, 155,124.66 and 59,021.14
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Solution
The fourth proportional to 103,490.14, 155,124.66 and 59,021.14 is: 88,468.66
Step by Step Solution
- Step 1: Write the proportion equation
103,490.14 : 155,124.66 = 59,021.14 : x - Step 2: Convert to fraction form
103,490.14/155,124.66 = 59,021.14/x - Step 3: Cross multiply
103,490.14x = 155,124.66 × 59,021.14 - Step 4: Simplify right side
103,490.14x = 9,155,634,275.31 - Step 5: Solve for x
x = 9,155,634,275.31/103,490.14 - Step 6: Final answer
x = 88,468.66
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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.