Finding the Fourth Proportional to 157,025.66, 216,698.18 and 85,406.18
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Solution
The fourth proportional to 157,025.66, 216,698.18 and 85,406.18 is: 117,862.02
Step by Step Solution
- Step 1: Write the proportion equation
157,025.66 : 216,698.18 = 85,406.18 : x - Step 2: Convert to fraction form
157,025.66/216,698.18 = 85,406.18/x - Step 3: Cross multiply
157,025.66x = 216,698.18 × 85,406.18 - Step 4: Simplify right side
157,025.66x = 18,507,362,256.23 - Step 5: Solve for x
x = 18,507,362,256.23/157,025.66 - Step 6: Final answer
x = 117,862.02
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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.