Finding the Fourth Proportional to 134,931.97, 186,202.57 and 74,501.31
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Solution
The fourth proportional to 134,931.97, 186,202.57 and 74,501.31 is: 102,809.85
Step by Step Solution
- Step 1: Write the proportion equation
134,931.97 : 186,202.57 = 74,501.31 : x - Step 2: Convert to fraction form
134,931.97/186,202.57 = 74,501.31/x - Step 3: Cross multiply
134,931.97x = 186,202.57 × 74,501.31 - Step 4: Simplify right side
134,931.97x = 13,872,335,204.11 - Step 5: Solve for x
x = 13,872,335,204.11/134,931.97 - Step 6: Final answer
x = 102,809.85
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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.