Finding the Fourth Proportional to 137,332.36, 189,502.99 and 76,894.60
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Solution
The fourth proportional to 137,332.36, 189,502.99 and 76,894.60 is: 106,105.77
Step by Step Solution
- Step 1: Write the proportion equation
137,332.36 : 189,502.99 = 76,894.60 : x - Step 2: Convert to fraction form
137,332.36/189,502.99 = 76,894.60/x - Step 3: Cross multiply
137,332.36x = 189,502.99 × 76,894.60 - Step 4: Simplify right side
137,332.36x = 14,571,755,282.87 - Step 5: Solve for x
x = 14,571,755,282.87/137,332.36 - Step 6: Final answer
x = 106,105.77
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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.