Finding the Fourth Proportional to 100,094.68, 138,124.69 and 54,763.63
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Solution
The fourth proportional to 100,094.68, 138,124.69 and 54,763.63 is: 75,570.54
Step by Step Solution
- Step 1: Write the proportion equation
100,094.68 : 138,124.69 = 54,763.63 : x - Step 2: Convert to fraction form
100,094.68/138,124.69 = 54,763.63/x - Step 3: Cross multiply
100,094.68x = 138,124.69 × 54,763.63 - Step 4: Simplify right side
100,094.68x = 7,564,209,417.02 - Step 5: Solve for x
x = 7,564,209,417.02/100,094.68 - Step 6: Final answer
x = 75,570.54
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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.