Finding the Fourth Proportional to 156,828.40, 216,416.14 and 88,843.99
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Solution
The fourth proportional to 156,828.40, 216,416.14 and 88,843.99 is: 122,600.71
Step by Step Solution
- Step 1: Write the proportion equation
156,828.40 : 216,416.14 = 88,843.99 : x - Step 2: Convert to fraction form
156,828.40/216,416.14 = 88,843.99/x - Step 3: Cross multiply
156,828.40x = 216,416.14 × 88,843.99 - Step 4: Simplify right side
156,828.40x = 19,227,273,378.00 - Step 5: Solve for x
x = 19,227,273,378.00/156,828.40 - Step 6: Final answer
x = 122,600.71
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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.