Finding the Fourth Proportional to 135,002.40, 186,299.52 and 74,572.08
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Solution
The fourth proportional to 135,002.40, 186,299.52 and 74,572.08 is: 102,907.38
Step by Step Solution
- Step 1: Write the proportion equation
135,002.40 : 186,299.52 = 74,572.08 : x - Step 2: Convert to fraction form
135,002.40/186,299.52 = 74,572.08/x - Step 3: Cross multiply
135,002.40x = 186,299.52 × 74,572.08 - Step 4: Simplify right side
135,002.40x = 13,892,742,709.40 - Step 5: Solve for x
x = 13,892,742,709.40/135,002.40 - Step 6: Final answer
x = 102,907.38
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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.