Finding the Fourth Proportional to 137,597.74, 189,804.24 and 86,529.46
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Solution
The fourth proportional to 137,597.74, 189,804.24 and 86,529.46 is: 119,359.94
Step by Step Solution
- Step 1: Write the proportion equation
137,597.74 : 189,804.24 = 86,529.46 : x - Step 2: Convert to fraction form
137,597.74/189,804.24 = 86,529.46/x - Step 3: Cross multiply
137,597.74x = 189,804.24 × 86,529.46 - Step 4: Simplify right side
137,597.74x = 16,423,658,392.91 - Step 5: Solve for x
x = 16,423,658,392.91/137,597.74 - Step 6: Final answer
x = 119,359.94
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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.