Finding the Fourth Proportional to 157,027.17, 216,700.25 and 85,407.68
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Solution
The fourth proportional to 157,027.17, 216,700.25 and 85,407.68 is: 117,864.09
Step by Step Solution
- Step 1: Write the proportion equation
157,027.17 : 216,700.25 = 85,407.68 : x - Step 2: Convert to fraction form
157,027.17/216,700.25 = 85,407.68/x - Step 3: Cross multiply
157,027.17x = 216,700.25 × 85,407.68 - Step 4: Simplify right side
157,027.17x = 18,507,864,097.38 - Step 5: Solve for x
x = 18,507,864,097.38/157,027.17 - Step 6: Final answer
x = 117,864.09
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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.