Finding the Fourth Proportional to 111,929.60, 154,473.74 and 83,586.08
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Solution
The fourth proportional to 111,929.60, 154,473.74 and 83,586.08 is: 115,356.92
Step by Step Solution
- Step 1: Write the proportion equation
111,929.60 : 154,473.74 = 83,586.08 : x - Step 2: Convert to fraction form
111,929.60/154,473.74 = 83,586.08/x - Step 3: Cross multiply
111,929.60x = 154,473.74 × 83,586.08 - Step 4: Simplify right side
111,929.60x = 12,911,853,199.24 - Step 5: Solve for x
x = 12,911,853,199.24/111,929.60 - Step 6: Final answer
x = 115,356.92
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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.