Finding the Fourth Proportional to 139,756.95, 192,862.67 and 76,094.75
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Solution
The fourth proportional to 139,756.95, 192,862.67 and 76,094.75 is: 105,009.70
Step by Step Solution
- Step 1: Write the proportion equation
139,756.95 : 192,862.67 = 76,094.75 : x - Step 2: Convert to fraction form
139,756.95/192,862.67 = 76,094.75/x - Step 3: Cross multiply
139,756.95x = 192,862.67 × 76,094.75 - Step 4: Simplify right side
139,756.95x = 14,675,835,313.20 - Step 5: Solve for x
x = 14,675,835,313.20/139,756.95 - Step 6: Final answer
x = 105,009.70
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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.