Finding the Fourth Proportional to 189,746.08, 261,971.76 and 121,792.48
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Solution
The fourth proportional to 189,746.08, 261,971.76 and 121,792.48 is: 168,152.04
Step by Step Solution
- Step 1: Write the proportion equation
189,746.08 : 261,971.76 = 121,792.48 : x - Step 2: Convert to fraction form
189,746.08/261,971.76 = 121,792.48/x - Step 3: Cross multiply
189,746.08x = 261,971.76 × 121,792.48 - Step 4: Simplify right side
189,746.08x = 31,906,190,340.36 - Step 5: Solve for x
x = 31,906,190,340.36/189,746.08 - Step 6: Final answer
x = 168,152.04
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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.