Finding the Fourth Proportional to 121,128.06, 167,346.36 and 92,547.75
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Solution
The fourth proportional to 121,128.06, 167,346.36 and 92,547.75 is: 127,860.79
Step by Step Solution
- Step 1: Write the proportion equation
121,128.06 : 167,346.36 = 92,547.75 : x - Step 2: Convert to fraction form
121,128.06/167,346.36 = 92,547.75/x - Step 3: Cross multiply
121,128.06x = 167,346.36 × 92,547.75 - Step 4: Simplify right side
121,128.06x = 15,487,529,088.69 - Step 5: Solve for x
x = 15,487,529,088.69/121,128.06 - Step 6: Final answer
x = 127,860.79
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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.