Finding the Fourth Proportional to 137,295.70, 189,479.73 and 76,865.56
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Solution
The fourth proportional to 137,295.70, 189,479.73 and 76,865.56 is: 106,081.00
Step by Step Solution
- Step 1: Write the proportion equation
137,295.70 : 189,479.73 = 76,865.56 : x - Step 2: Convert to fraction form
137,295.70/189,479.73 = 76,865.56/x - Step 3: Cross multiply
137,295.70x = 189,479.73 × 76,865.56 - Step 4: Simplify right side
137,295.70x = 14,564,465,555.10 - Step 5: Solve for x
x = 14,564,465,555.10/137,295.70 - Step 6: Final answer
x = 106,081.00
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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.