Finding the Fourth Proportional to 154,679.68, 213,438.93 and 94,228.39
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Solution
The fourth proportional to 154,679.68, 213,438.93 and 94,228.39 is: 130,023.59
Step by Step Solution
- Step 1: Write the proportion equation
154,679.68 : 213,438.93 = 94,228.39 : x - Step 2: Convert to fraction form
154,679.68/213,438.93 = 94,228.39/x - Step 3: Cross multiply
154,679.68x = 213,438.93 × 94,228.39 - Step 4: Simplify right side
154,679.68x = 20,112,006,737.22 - Step 5: Solve for x
x = 20,112,006,737.22/154,679.68 - Step 6: Final answer
x = 130,023.59
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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.