Finding the Fourth Proportional to 106,938.68, 147,573.52 and 59,190.98
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Solution
The fourth proportional to 106,938.68, 147,573.52 and 59,190.98 is: 81,682.52
Step by Step Solution
- Step 1: Write the proportion equation
106,938.68 : 147,573.52 = 59,190.98 : x - Step 2: Convert to fraction form
106,938.68/147,573.52 = 59,190.98/x - Step 3: Cross multiply
106,938.68x = 147,573.52 × 59,190.98 - Step 4: Simplify right side
106,938.68x = 8,735,021,270.85 - Step 5: Solve for x
x = 8,735,021,270.85/106,938.68 - Step 6: Final answer
x = 81,682.52
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1.5x scale
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.