Finding the Fourth Proportional to 128,833.08, 193,305.24 and 69,710.46
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Solution
The fourth proportional to 128,833.08, 193,305.24 and 69,710.46 is: 104,595.79
Step by Step Solution
- Step 1: Write the proportion equation
128,833.08 : 193,305.24 = 69,710.46 : x - Step 2: Convert to fraction form
128,833.08/193,305.24 = 69,710.46/x - Step 3: Cross multiply
128,833.08x = 193,305.24 × 69,710.46 - Step 4: Simplify right side
128,833.08x = 13,475,397,200.81 - Step 5: Solve for x
x = 13,475,397,200.81/128,833.08 - Step 6: Final answer
x = 104,595.79
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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.