Finding the Fourth Proportional to 138,752.05, 208,127.80 and 107,207.95
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Solution
The fourth proportional to 138,752.05, 208,127.80 and 107,207.95 is: 160,811.71
Step by Step Solution
- Step 1: Write the proportion equation
138,752.05 : 208,127.80 = 107,207.95 : x - Step 2: Convert to fraction form
138,752.05/208,127.80 = 107,207.95/x - Step 3: Cross multiply
138,752.05x = 208,127.80 × 107,207.95 - Step 4: Simplify right side
138,752.05x = 22,312,954,776.01 - Step 5: Solve for x
x = 22,312,954,776.01/138,752.05 - Step 6: Final answer
x = 160,811.71
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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.