Finding the Fourth Proportional to 157,219.24, 216,955.76 and 85,599.52
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Solution
The fourth proportional to 157,219.24, 216,955.76 and 85,599.52 is: 118,123.64
Step by Step Solution
- Step 1: Write the proportion equation
157,219.24 : 216,955.76 = 85,599.52 : x - Step 2: Convert to fraction form
157,219.24/216,955.76 = 85,599.52/x - Step 3: Cross multiply
157,219.24x = 216,955.76 × 85,599.52 - Step 4: Simplify right side
157,219.24x = 18,571,308,917.24 - Step 5: Solve for x
x = 18,571,308,917.24/157,219.24 - Step 6: Final answer
x = 118,123.64
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1.5x scale
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.