Finding the Fourth Proportional to 135,045.36, 186,358.68 and 74,615.04
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Solution
The fourth proportional to 135,045.36, 186,358.68 and 74,615.04 is: 102,966.59
Step by Step Solution
- Step 1: Write the proportion equation
135,045.36 : 186,358.68 = 74,615.04 : x - Step 2: Convert to fraction form
135,045.36/186,358.68 = 74,615.04/x - Step 3: Cross multiply
135,045.36x = 186,358.68 × 74,615.04 - Step 4: Simplify right side
135,045.36x = 13,905,160,362.55 - Step 5: Solve for x
x = 13,905,160,362.55/135,045.36 - Step 6: Final answer
x = 102,966.59
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1.5x scale
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.