Finding the Fourth Proportional to 139,335.06, 192,362.08 and 91,726.80
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Solution
The fourth proportional to 139,335.06, 192,362.08 and 91,726.80 is: 126,635.45
Step by Step Solution
- Step 1: Write the proportion equation
139,335.06 : 192,362.08 = 91,726.80 : x - Step 2: Convert to fraction form
139,335.06/192,362.08 = 91,726.80/x - Step 3: Cross multiply
139,335.06x = 192,362.08 × 91,726.80 - Step 4: Simplify right side
139,335.06x = 17,644,758,039.74 - Step 5: Solve for x
x = 17,644,758,039.74/139,335.06 - Step 6: Final answer
x = 126,635.45
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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.