Finding the Fourth Proportional to 128,848.08, 193,327.76 and 69,725.48
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Solution
The fourth proportional to 128,848.08, 193,327.76 and 69,725.48 is: 104,618.33
Step by Step Solution
- Step 1: Write the proportion equation
128,848.08 : 193,327.76 = 69,725.48 : x - Step 2: Convert to fraction form
128,848.08/193,327.76 = 69,725.48/x - Step 3: Cross multiply
128,848.08x = 193,327.76 × 69,725.48 - Step 4: Simplify right side
128,848.08x = 13,479,870,863.32 - Step 5: Solve for x
x = 13,479,870,863.32/128,848.08 - Step 6: Final answer
x = 104,618.33
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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.