Finding the Fourth Proportional to 100,652.94, 138,902.80 and 55,332.84
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Solution
The fourth proportional to 100,652.94, 138,902.80 and 55,332.84 is: 76,360.28
Step by Step Solution
- Step 1: Write the proportion equation
100,652.94 : 138,902.80 = 55,332.84 : x - Step 2: Convert to fraction form
100,652.94/138,902.80 = 55,332.84/x - Step 3: Cross multiply
100,652.94x = 138,902.80 × 55,332.84 - Step 4: Simplify right side
100,652.94x = 7,685,886,407.95 - Step 5: Solve for x
x = 7,685,886,407.95/100,652.94 - Step 6: Final answer
x = 76,360.28
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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.