Finding the Fourth Proportional to 134,636.10, 201,954.15 and 39,869.70
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Solution
The fourth proportional to 134,636.10, 201,954.15 and 39,869.70 is: 59,804.55
Step by Step Solution
- Step 1: Write the proportion equation
134,636.10 : 201,954.15 = 39,869.70 : x - Step 2: Convert to fraction form
134,636.10/201,954.15 = 39,869.70/x - Step 3: Cross multiply
134,636.10x = 201,954.15 × 39,869.70 - Step 4: Simplify right side
134,636.10x = 8,051,851,374.26 - Step 5: Solve for x
x = 8,051,851,374.26/134,636.10 - Step 6: Final answer
x = 59,804.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.