Finding the Fourth Proportional to 138,030.18, 206,712.94 and 93,521.98
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Solution
The fourth proportional to 138,030.18, 206,712.94 and 93,521.98 is: 140,057.80
Step by Step Solution
- Step 1: Write the proportion equation
138,030.18 : 206,712.94 = 93,521.98 : x - Step 2: Convert to fraction form
138,030.18/206,712.94 = 93,521.98/x - Step 3: Cross multiply
138,030.18x = 206,712.94 × 93,521.98 - Step 4: Simplify right side
138,030.18x = 19,332,203,440.42 - Step 5: Solve for x
x = 19,332,203,440.42/138,030.18 - Step 6: Final answer
x = 140,057.80
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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.