Finding the Fourth Proportional to 156,918.76, 216,579.36 and 93,244.28
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Solution
The fourth proportional to 156,918.76, 216,579.36 and 93,244.28 is: 128,695.81
Step by Step Solution
- Step 1: Write the proportion equation
156,918.76 : 216,579.36 = 93,244.28 : x - Step 2: Convert to fraction form
156,918.76/216,579.36 = 93,244.28/x - Step 3: Cross multiply
156,918.76x = 216,579.36 × 93,244.28 - Step 4: Simplify right side
156,918.76x = 20,194,786,486.06 - Step 5: Solve for x
x = 20,194,786,486.06/156,918.76 - Step 6: Final answer
x = 128,695.81
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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.