Finding the Fourth Proportional to 135,303.19, 186,715.60 and 74,873.79
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Solution
The fourth proportional to 135,303.19, 186,715.60 and 74,873.79 is: 103,324.28
Step by Step Solution
- Step 1: Write the proportion equation
135,303.19 : 186,715.60 = 74,873.79 : x - Step 2: Convert to fraction form
135,303.19/186,715.60 = 74,873.79/x - Step 3: Cross multiply
135,303.19x = 186,715.60 × 74,873.79 - Step 4: Simplify right side
135,303.19x = 13,980,104,624.12 - Step 5: Solve for x
x = 13,980,104,624.12/135,303.19 - Step 6: Final answer
x = 103,324.28
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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.