Finding the Fourth Proportional to 92,598.12, 138,974.94 and 74,246.76
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Solution
The fourth proportional to 92,598.12, 138,974.94 and 74,246.76 is: 111,432.49
Step by Step Solution
- Step 1: Write the proportion equation
92,598.12 : 138,974.94 = 74,246.76 : x - Step 2: Convert to fraction form
92,598.12/138,974.94 = 74,246.76/x - Step 3: Cross multiply
92,598.12x = 138,974.94 × 74,246.76 - Step 4: Simplify right side
92,598.12x = 10,318,439,016.19 - Step 5: Solve for x
x = 10,318,439,016.19/92,598.12 - Step 6: Final answer
x = 111,432.49
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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.