Finding the Fourth Proportional to 134,428.10, 201,642.15 and 92,437.70
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Solution
The fourth proportional to 134,428.10, 201,642.15 and 92,437.70 is: 138,656.55
Step by Step Solution
- Step 1: Write the proportion equation
134,428.10 : 201,642.15 = 92,437.70 : x - Step 2: Convert to fraction form
134,428.10/201,642.15 = 92,437.70/x - Step 3: Cross multiply
134,428.10x = 201,642.15 × 92,437.70 - Step 4: Simplify right side
134,428.10x = 18,639,336,569.06 - Step 5: Solve for x
x = 18,639,336,569.06/134,428.10 - Step 6: Final answer
x = 138,656.55
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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.