Finding the Fourth Proportional to 134,729.48, 185,923.60 and 74,298.40
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Solution
The fourth proportional to 134,729.48, 185,923.60 and 74,298.40 is: 102,530.09
Step by Step Solution
- Step 1: Write the proportion equation
134,729.48 : 185,923.60 = 74,298.40 : x - Step 2: Convert to fraction form
134,729.48/185,923.60 = 74,298.40/x - Step 3: Cross multiply
134,729.48x = 185,923.60 × 74,298.40 - Step 4: Simplify right side
134,729.48x = 13,813,826,002.24 - Step 5: Solve for x
x = 13,813,826,002.24/134,729.48 - Step 6: Final answer
x = 102,530.09
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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.