Finding the Fourth Proportional to 113,056.75, 156,020.14 and 62,755.75
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Solution
The fourth proportional to 113,056.75, 156,020.14 and 62,755.75 is: 86,603.95
Step by Step Solution
- Step 1: Write the proportion equation
113,056.75 : 156,020.14 = 62,755.75 : x - Step 2: Convert to fraction form
113,056.75/156,020.14 = 62,755.75/x - Step 3: Cross multiply
113,056.75x = 156,020.14 × 62,755.75 - Step 4: Simplify right side
113,056.75x = 9,791,160,900.81 - Step 5: Solve for x
x = 9,791,160,900.81/113,056.75 - Step 6: Final answer
x = 86,603.95
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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.