Finding the Fourth Proportional to 134,428.60, 201,642.90 and 102,935.80
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Solution
The fourth proportional to 134,428.60, 201,642.90 and 102,935.80 is: 154,403.70
Step by Step Solution
- Step 1: Write the proportion equation
134,428.60 : 201,642.90 = 102,935.80 : x - Step 2: Convert to fraction form
134,428.60/201,642.90 = 102,935.80/x - Step 3: Cross multiply
134,428.60x = 201,642.90 × 102,935.80 - Step 4: Simplify right side
134,428.60x = 20,756,273,225.82 - Step 5: Solve for x
x = 20,756,273,225.82/134,428.60 - Step 6: Final answer
x = 154,403.70
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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.