Finding the Fourth Proportional to 142,495.24, 196,513.14 and 122,345.68
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Solution
The fourth proportional to 142,495.24, 196,513.14 and 122,345.68 is: 168,725.17
Step by Step Solution
- Step 1: Write the proportion equation
142,495.24 : 196,513.14 = 122,345.68 : x - Step 2: Convert to fraction form
142,495.24/196,513.14 = 122,345.68/x - Step 3: Cross multiply
142,495.24x = 196,513.14 × 122,345.68 - Step 4: Simplify right side
142,495.24x = 24,042,533,742.24 - Step 5: Solve for x
x = 24,042,533,742.24/142,495.24 - Step 6: Final answer
x = 168,725.17
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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.