Finding the Fourth Proportional to 157,303.28, 235,930.57 and 86,260.98
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Solution
The fourth proportional to 157,303.28, 235,930.57 and 86,260.98 is: 129,378.12
Step by Step Solution
- Step 1: Write the proportion equation
157,303.28 : 235,930.57 = 86,260.98 : x - Step 2: Convert to fraction form
157,303.28/235,930.57 = 86,260.98/x - Step 3: Cross multiply
157,303.28x = 235,930.57 × 86,260.98 - Step 4: Simplify right side
157,303.28x = 20,351,602,180.16 - Step 5: Solve for x
x = 20,351,602,180.16/157,303.28 - Step 6: Final answer
x = 129,378.12
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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.