Finding the Fourth Proportional to 139,463.90, 192,461.35 and 75,801.68
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Solution
The fourth proportional to 139,463.90, 192,461.35 and 75,801.68 is: 104,606.95
Step by Step Solution
- Step 1: Write the proportion equation
139,463.90 : 192,461.35 = 75,801.68 : x - Step 2: Convert to fraction form
139,463.90/192,461.35 = 75,801.68/x - Step 3: Cross multiply
139,463.90x = 192,461.35 × 75,801.68 - Step 4: Simplify right side
139,463.90x = 14,588,893,665.07 - Step 5: Solve for x
x = 14,588,893,665.07/139,463.90 - Step 6: Final answer
x = 104,606.95
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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.