Finding the Fourth Proportional to 170,711.36, 235,623.86 and 103,699.52
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Solution
The fourth proportional to 170,711.36, 235,623.86 and 103,699.52 is: 143,130.96
Step by Step Solution
- Step 1: Write the proportion equation
170,711.36 : 235,623.86 = 103,699.52 : x - Step 2: Convert to fraction form
170,711.36/235,623.86 = 103,699.52/x - Step 3: Cross multiply
170,711.36x = 235,623.86 × 103,699.52 - Step 4: Simplify right side
170,711.36x = 24,434,081,182.55 - Step 5: Solve for x
x = 24,434,081,182.55/170,711.36 - Step 6: Final answer
x = 143,130.96
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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.