Finding the Fourth Proportional to 135,024.36, 186,330.34 and 74,600.79
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Solution
The fourth proportional to 135,024.36, 186,330.34 and 74,600.79 is: 102,947.28
Step by Step Solution
- Step 1: Write the proportion equation
135,024.36 : 186,330.34 = 74,600.79 : x - Step 2: Convert to fraction form
135,024.36/186,330.34 = 74,600.79/x - Step 3: Cross multiply
135,024.36x = 186,330.34 × 74,600.79 - Step 4: Simplify right side
135,024.36x = 13,900,390,564.97 - Step 5: Solve for x
x = 13,900,390,564.97/135,024.36 - Step 6: Final answer
x = 102,947.28
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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.